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 A158647 #3 Mar 30 2012 18:52:03 %S A158647 13,39,39,39,78,39,39,117,39,39,117,39,78,130,39,39,117,117,39,117,39, %T A158647 39,234,39,78,117,39,117,117,39,39,234,117,39,117,39,39,234,117,39, %U A158647 195,39,117,117,39,117,117,117,39,234,39,39,351,39,39,117,39,117,234,117,78,117,130 %N A158647 A145501(16n+8). %C A158647 Apparently this is the same as 13*A158315(n). %Y A158647 Cf. A158280, A145511, A145444. %K A158647 nonn %O A158647 0,1 %A A158647 _Paul Curtz_, Mar 23 2009 %E A158647 Edited and extended by _R. J. Mathar_, Apr 04 2009