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 A086433 #9 May 18 2024 18:36:54 %S A086433 0,1,2,4,3,5,6,10,13,12,7,9,8,11,14,15,16,18,17,28,29,37,41,40,33,36, %T A086433 35,39,19,20,24,27,26,21,23,22,25,30,32,31,38,34,42,43,44,46,45,47,48, %U A086433 52,55,54,49,51,50,53,84,85,86,88,87,112,113,126,131,130,121,125,124,129 %N A086433 Contraction-permutation of A085169: a(n) = A082853(A085169(A081291(n))). %H A086433 Antti Karttunen, <a href="http://www.iki.fi/~kartturi/matikka/Nekomorphisms/gatomorf.htm">Gatomorphisms</a> (With the complete Scheme source) %H A086433 <a href="/index/Per#IntegerPermutationCatAuto">Index entries for signature-permutations induced by Catalan automorphisms</a> %Y A086433 Inverse: A086434. %K A086433 nonn %O A086433 0,3 %A A086433 _Antti Karttunen_, Jun 23 2003