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 A082315 #11 Jul 09 2025 03:57:31
%S A082315 0,1,2,3,4,6,8,7,5,9,11,14,16,19,21,22,18,17,20,13,12,10,15,23,25,28,
%T A082315 30,33,37,39,42,44,47,51,53,56,60,58,59,62,63,64,49,50,46,45,48,55,54,
%U A082315 57,61,35,36,32,31,34,27,26,24,29,41,40,38,43,52,65,67,70,72,75
%N A082315 Permutation A057501 applied twice ("squared").
%H A082315 A. Karttunen, <a href="http://www.iki.fi/~kartturi/matikka/Nekomorphisms/gatomorf.htm">Gatomorphisms</a> (with the complete Scheme source)
%H A082315 <a href="/index/Per#IntegerPermutationCatAuto">Index entries for signature-permutations induced by Catalan automorphisms</a>
%F A082315 a(n) = A057501(A057501(n)).
%Y A082315 Inverse of A082316. a(n) = A082313(A057164(n)). Occurs in A073200 as row 34359740687. Cf. also A082317-A082324.
%Y A082315 Number of cycles: A054357. (In range [A014137(n-1)..A014138(n-1)] of this permutation, possibly shifted one term left or right).
%K A082315 nonn
%O A082315 0,3
%A A082315 _Antti Karttunen_, Apr 17 2003, Proposed by _Wouter Meeussen_