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 A112136 #2 Mar 31 2012 14:02:21 %S A112136 155,336,84,180,336,145,24,420,71,120,144,61,215,84,300,25,95,205,215, %T A112136 216,180,84,1,60,95,204,300,36,145,144,36,59,25,156,504,251,169,60,95, %U A112136 36,205,95,25,95,205,299,61,264,336,95,84,216,265,60,204,95,60,156 %N A112136 First differences of A112066. %Y A112136 Period=420. Also half of the first differences of A112076. Cf. A112086. %K A112136 nonn %O A112136 1,1 %A A112136 _Antti Karttunen_, Aug 28 2005