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 A087790 #5 Mar 30 2012 18:39:21 %S A087790 1,4,6,7,9,18,19,27,30,31,38,40,41,43,49,50,53,57,58,63,65,66,68,71, %T A087790 72,78,82,83,86,88,89,91,95,96,101,104,105,109,111,112,114,118,119, %U A087790 122,130,131,135,137,138,140,143,144,148,155,156,159,161,162,164,171,172,176 %N A087790 Partial sums of A085068. %F A087790 Conjecture : a(n)=3n+O(sqrt(n)) %K A087790 nonn %O A087790 0,2 %A A087790 _Benoit Cloitre_, Oct 07 2003