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 A065280 #2 May 01 2014 02:42:46 %S A065280 1,1,1,6,2,2,12,14,4,4,4,4,24,26,28,30,8,8,8,8,8,8,8,8,48,50,52,54,56, %T A065280 58,60,62,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,96,98,100, %U A065280 102,104,106,108,110,112,114,116,118,120,122,124,126,32,32,32,32,32,32 %N A065280 The bisection of odd terms (the <= 0 half of Z) of A065279. %K A065280 nonn %O A065280 1,4 %A A065280 _Antti Karttunen_, Oct 28 2001