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 A163099 #4 Aug 23 2013 21:09:06 %S A163099 0,2,3,6,7,8,9,10,12,16,18,19,22,24,26,27,28,30,34,36,38,41,44,45,46, %T A163099 51,52,57,59,66,67,69,70,72,73,74,75,76,78,81,82,83,84,86,89,91,93,94, %U A163099 95,96,97,98,101,102,104,105,106,107,108 %N A163099 a(n) = A163097(n)/2. %Y A163099 Cf. A000041, A154797, A163097. %K A163099 nonn %O A163099 1,2 %A A163099 _Omar E. Pol_, Aug 09 2009 %E A163099 More terms from _Max Alekseyev_, Aug 23 2013