This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A277291 #8 Nov 07 2016 06:17:28 %S A277291 0,4,8,24,16,20,48,42,64,99,40,88,96,117,112,120,0,102,144,76,80,189, %T A277291 0,184,192,100,208,324,0,348,240,372,128,363,272,210,288,444,304,624, %U A277291 320,574,336,258,352,495,0,564,384,588,200,612,416,583,432,440,0,570 %N A277291 Largest number that is n times sum of its digits when written in base 5. %H A277291 Daniel Mondot, <a href="/A277291/b277291.txt">Table of n, a(n) for n = 0..37057</a> %F A277291 a(n) = 0 for n in A058901. - _Michel Marcus_, Oct 09 2016 %Y A277291 Cf. A058901, A065880, A277249, A277250, A052489. %K A277291 nonn,base,look %O A277291 0,2 %A A277291 _Daniel Mondot_, Oct 09 2016