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 A277249 #15 Nov 07 2016 06:17:12 %S A277249 0,2,8,6,16,25,24,35,32,18,80,77,48,78,56,75,64,0,72,152,160,105,132, %T A277249 115,96,150,156,54,224,232,240,186,0,231,204,210,144,296,228,234,320, %U A277249 287,168,172,0,225,368,376,192,392,400,0,312,371,216,440,448,456 %N A277249 Largest number that is n times sum of its digits when written in base 3. %H A277249 Daniel Mondot, <a href="/A277249/b277249.txt">Table of n, a(n) for n = 0..10000</a> %F A277249 a(n) = 0 for n in A058899. - _Michel Marcus_, Oct 09 2016 %Y A277249 Cf. A058899, A065880, A277250, A277291, A052489. %K A277249 base,nonn,look %O A277249 0,2 %A A277249 _Daniel Mondot_, Oct 06 2016