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 A249618 #9 Nov 28 2014 22:19:59 %S A249618 0,1,3,4,4,2,10,11,13,14,14,12,13,14,7,9,8,14,14,12,9,5,14,6,37,38,40, %T A249618 41,41,39,47,48,50 %N A249618 Set partition (A231428) corresponding to the n-th finite permutation (A055089). %H A249618 Tilman Piesk, <a href="https://en.wikiversity.org/wiki/Permutations_and_partitions_in_the_OEIS">Permutations and partitions in the OEIS</a> (Wikiversity) %e A249618 The 23rd permutation is (1 4)(2 3) in cycle notation, and the corresponding set partition is {{1,4},{2,3}}, which is the 6th in the infinite order defined by A231428. So a(23) = 6. %K A249618 nonn,more %O A249618 0,3 %A A249618 _Tilman Piesk_, Nov 02 2014