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 A159124 #4 Feb 16 2025 08:33:10
%S A159124 1,37,894,18206,342569,6221041,111642123,2007816930,36510158201
%N A159124 Number of permutations of 1..n containing the relative rank sequence { 153462 } at any spacing.
%C A159124 Same series for 264351 513426 624315 524361 253416 163425 614352
%H A159124 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/PermutationPattern.html">Permutation Pattern</a>
%Y A159124 A056986 A158005 A158423
%K A159124 nonn
%O A159124 6,2
%A A159124 _R. H. Hardin_ Apr 05 2009