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 A096607 #3 Mar 30 2012 18:50:44 %S A096607 1,1,2,2,3,4,4,5,5,6,7,8,8,9,9,10,11,11,12,13,13,14,15,16,16,17,17,18, %T A096607 19,19,20,21,21,22,23,23,24,25,25,26,27,27,28,29,29,30,31,32,32,33,33, %U A096607 34,35,35,36,37,37,38,39,39,40,41,41,42,43,43,44,45,45,46,47,47,48,49 %N A096607 a(n) = A096605(2*n). %Y A096607 Cf. A096603, A096603. %K A096607 nonn %O A096607 1,3 %A A096607 _Reinhard Zumkeller_, Jun 30 2004