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 A086588 #6 May 18 2024 18:37:26 %S A086588 1,1,2,5,13,33,84,204,485,1147,2622,5864,12870 %N A086588 Number of cycles in range [A014137(n-1)..A014138(n-1)] of permutations A072088/A072089. %K A086588 nonn,more %O A086588 0,3 %A A086588 _Antti Karttunen_, Jun 23 2003