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 A099259 #5 Mar 30 2012 17:38:04 %S A099259 1,2,2,2,6,4,4,12,4,8,12,14,6,22,2,12,18,6,12,24,12,4,48,4,30,24,22, %T A099259 30,38,14,20,12,24,4,30,18,6,68,38,48,26,34,8,56,24,6,40,56,10,86,6,2, %U A099259 76,42,72,48,26,4,40,52,12,54,12,8,46,26,24,72,12,42,74,40,36,98,22,18,58 %N A099259 A100287(n+1) - A000960(n). %C A099259 Always positive. %Y A099259 Cf. A000960, A100002, A099264. %K A099259 nonn,easy %O A099259 1,2 %A A099259 _N. J. A. Sloane_, Nov 16 2004 %E A099259 More terms from _David Wasserman_, Feb 27 2008