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 A065273 #3 May 01 2014 02:42:46 %S A065273 0,2,2,4,1,4,5,8,2,8,2,8,11,8,11,16,4,16,4,16,4,16,4,16,23,16,23,16, %T A065273 23,16,23,32,8,32,8,32,8,32,8,32,8,32,8,32,8,32,8,32,47,32,47,32,47, %U A065273 32,47,32,47,32,47,32,47,32,47,64,16,64,16,64,16,64,16,64,16,64,16,64,16,64 %N A065273 The siteswap sequence (the deltas p[i]-i, i in ]-inf,+inf[, folded from Z to N, mapping 0->1, 1->2, -1->3, 2->4, -2->5, etc.) for A065272. %Y A065273 The bisection of even terms (the positive half of Z) is given by A062383 and the bisection of odd terms (the nonpositive half of Z) is given by A065274. %K A065273 nonn %O A065273 1,2 %A A065273 _Antti Karttunen_, Oct 28 2001