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A107679 - OEIS
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 3.2 Final//EN"> <html> <head> <link rel="stylesheet" href="/styles.css"> <meta name="format-detection" content="telephone=no"> <meta http-equiv="content-type" content="text/html; charset=utf-8"> <meta name=viewport content="width=device-width, initial-scale=1"> <meta name="keywords" content="OEIS,integer sequences,Sloane" /> <title>A107679 - OEIS</title> <link rel="search" type="application/opensearchdescription+xml" title="OEIS" href="/oeis.xml"> <script> var myURL = "\/A107679" function redir() { var host = document.location.hostname; if(host != "oeis.org" && host != "127.0.0.1" && !/^([0-9.]+)$/.test(host) && host != "localhost" && host != "localhost.localdomain") { document.location = "https"+":"+"//"+"oeis"+".org/" + myURL; } } function sf() { if(document.location.pathname == "/" && document.f) document.f.q.focus(); } </script> </head> <body bgcolor=#ffffff onload="redir();sf()"> <div class=loginbar> <div class=login> <a href="/login?redirect=%2fA107679">login</a> </div> </div> <div class=center><div class=top> <center> <div class=donors> The OEIS is supported by <a href="http://oeisf.org/#DONATE">the many generous donors to the OEIS Foundation</a>. </div> <div class=banner> <a href="/"><img class=banner border="0" width="600" src="/banner2021.jpg" alt="A107679 - OEIS"></a> </div> </center> </div></div> <div class=center><div class=pagebody> <div class=searchbarcenter> <form name=f action="/search" method="GET"> <div class=searchbargreet> <div class=searchbar> <div class=searchq> <input class=searchbox maxLength=1024 name=q value="" title="Search Query"> </div> <div class=searchsubmit> <input type=submit value="Search" name=go> </div> <div class=hints> <span class=hints><a href="/hints.html">Hints</a></span> </div> </div> <div class=searchgreet> (Greetings from <a href="/welcome">The On-Line Encyclopedia of Integer Sequences</a>!) </div> </div> </form> </div> <div class=sequence> <div class=space1></div> <div class=line></div> <div class=seqhead> <div class=seqnumname> <div class=seqnum> A107679 </div> <div class=seqname> Numbers n such that sum of digits of n^3 is 2^3 = 8. </div> </div> <div class=scorerefs> 5 </div> </div> <div> <div class=seqdatabox> <div class=seqdata>2, 5, 8, 11, 20, 50, 80, 101, 110, 200, 500, 800, 1001, 1010, 1100, 2000, 5000, 8000, 10001, 10010, 10100, 11000, 20000, 50000, 80000, 100001, 100010, 100100, 101000, 110000, 200000, 500000, 800000, 1000001, 1000010, 1000100, 1001000, 1010000, 1100000</div> <div class=seqdatalinks> (<a href="/A107679/list">list</a>; <a href="/A107679/graph">graph</a>; <a href="/search?q=A107679+-id:A107679">refs</a>; <a href="/A107679/listen">listen</a>; <a href="/history?seq=A107679">history</a>; <a href="/search?q=id:A107679&fmt=text">text</a>; <a href="/A107679/internal">internal format</a>) </div> </div> </div> <div class=entry> <div class=section> <div class=sectname>OFFSET</div> <div class=sectbody> <div class=sectline>1,1</div> </div> </div> <div class=section> <div class=sectname>LINKS</div> <div class=sectbody> <div class=sectline>Vincenzo Librandi, <a href="/A107679/b107679.txt">Table of n, a(n) for n = 1..50</a></div> </div> </div> <div class=section> <div class=sectname>MATHEMATICA</div> <div class=sectbody> <div class=sectline>Do[If[Total[IntegerDigits[m^3]]==8, Print[m]], {m, 2*10^7}] (* <a href="/wiki/User:Vincenzo_Librandi">Vincenzo Librandi</a>, Aug 13 2017 *)</div> </div> </div> <div class=section> <div class=sectname>PROG</div> <div class=sectbody> <div class=sectline>(PARI) isok(n) = sumdigits(n^3) == 8; \\ <a href="/wiki/User:Michel_Marcus">Michel Marcus</a>, Aug 12 2017</div> <div class=sectline>(Magma) [ n: n in [1..2*10^6] | 8 eq (&+Intseq(n^3)) ]; // <a href="/wiki/User:Vincenzo_Librandi">Vincenzo Librandi</a>, Aug 13 2017</div> </div> </div> <div class=section> <div class=sectname>CROSSREFS</div> <div class=sectbody> <div class=sectline>Cf. <a href="/A004164" title="Sum of digits of n^3.">A004164</a> (sum of digits of cubes), <a href="/A067075" title="a(n) is the smallest number m such that the sum of the digits of m^3 is equal to n^3.">A067075</a>, <a href="/A159462" title="Numbers n with property that sod(n^3) = 5^3.">A159462</a>, <a href="/A159463" title="Numbers n with property that sod(n^3) = 6^3.">A159463</a>.</div> <div class=sectline>Sequence in context: <a href="/A154484" title="a(n+1)-+a(n) = prime, a(1)=0, a(2)=2.">A154484</a> <a href="/A129300" title="a(0)=1. a(n) = a(n-1) + (sum of the terms of the sequence which are <= n).">A129300</a> <a href="/A347839" title="An array of the positive integers congruent to 2 modulo 3 (A016789), read by antidiagonals upwards, giving the present triangle.">A347839</a> * <a href="/A018846" title="Strobogrammatic numbers: numbers that are the same upside down (using calculator-style numerals).">A018846</a> <a href="/A261578" title="Numbers m such that (4^m + 17) / 3 is prime.">A261578</a> <a href="/A264613" title="Numbers n such that the Shevelev polynomial {m, n} has a root at m = -1.">A264613</a></div> <div class=sectline>Adjacent sequences: <a href="/A107676" title="Matrix cube of triangle A107671.">A107676</a> <a href="/A107677" title="Numbers A such that the square of concatenation AA is of form NNMM.">A107677</a> <a href="/A107678" title="Numbers NM associated with A107677.">A107678</a> * <a href="/A107680" title="Repeating k-th ternary repunit (A003462) 2^k times, k >= 0.">A107680</a> <a href="/A107681" title="Repeat(first 2^k numbers with no 2 in ternary representation) for k>0.">A107681</a> <a href="/A107682" title="The size of every run of identical digits is given by the digit immediately following immediately the said run. There can be...">A107682</a></div> </div> </div> <div class=section> <div class=sectname>KEYWORD</div> <div class=sectbody> <div class=sectline><span title="it is very easy to produce terms of sequence">easy</span>,<span title="a sequence of nonnegative numbers">nonn</span>,<span title="dependent on base used for sequence">base</span></div> </div> </div> <div class=section> <div class=sectname>AUTHOR</div> <div class=sectbody> <div class=sectline><a href="/wiki/User:Zak_Seidov">Zak Seidov</a>, Jun 10 2005</div> </div> </div> <div class=section> <div class=sectname>EXTENSIONS</div> <div class=sectbody> <div class=sectline>More terms from <a href="/wiki/User:Michel_Marcus">Michel Marcus</a>, Oct 09 2013</div> </div> </div> <div class=section> <div class=sectname>STATUS</div> <div class=sectbody> <div class=sectline>approved</div> </div> </div> </div> <div class=space10></div> </div> </div></div> <p> <div class=footerpad></div> <div class=footer> <center> <div class=bottom> <div class=linksbar> <a href="/">Lookup</a> <a href="/wiki/Welcome"><font color="red">Welcome</font></a> <a href="/wiki/Main_Page"><font color="red">Wiki</font></a> <a href="/wiki/Special:RequestAccount">Register</a> <a href="/play.html">Music</a> <a href="/plot2.html">Plot 2</a> <a href="/demo1.html">Demos</a> <a href="/wiki/Index_to_OEIS">Index</a> <a href="/webcam">WebCam</a> <a href="/Submit.html">Contribute</a> <a href="/eishelp2.html">Format</a> <a href="/wiki/Style_Sheet">Style Sheet</a> <a href="/transforms.html">Transforms</a> <a href="/ol.html">Superseeker</a> <a href="/recent">Recents</a> </div> <div class=linksbar> <a href="/community.html">The OEIS Community</a> </div> <div class=linksbar> Maintained by <a href="http://oeisf.org">The OEIS Foundation Inc.</a> </div> <div class=dbinfo>Last modified April 10 05:25 EDT 2025. Contains 382654 sequences.</div> <div class=legal> <a href="/wiki/Legal_Documents">License Agreements, Terms of Use, Privacy Policy</a> </div> </div> </center> </div> </body> </html>