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 A126008 #5 Mar 31 2012 13:21:13 %S A126008 0,2,1,3,32,34,33,35,16,18,17,19,48,50,49,51,8,10,9,11,40,42,41,43,24, %T A126008 26,25,27,56,58,57,59,4,6,5,7,36,38,37,39,20,22,21,23,52,54,53,55,12, %U A126008 14,13,15,44,46,45,47,28,30,29,31,60,62,61,63,512,514,513,515,544,546 %N A126008 Involution of nonnegative integers: composition of involutions A057300 and A126007. %H A126008 <a href="/index/Per#IntegerPermutation">Index entries for sequences that are permutations of the natural numbers</a> %Y A126008 a(n) = A057300(A126007(n)) = A126007(A057300(n)). The first 64 terms are identical with A106485. %K A126008 nonn,base %O A126008 0,2 %A A126008 _Antti Karttunen_, Jan 02 2007