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 A159096 #4 Feb 16 2025 08:33:10
%S A159096 1,37,893,18154,340949,6181392,110796723,1991275117,36204155832,
%T A159096 669880039209
%N A159096 Number of permutations of 1..n containing the relative rank sequence { 134652 } at any spacing.
%C A159096 Same series for 256431 521346 643125 453261 324516 162354 615423
%H A159096 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/PermutationPattern.html">Permutation Pattern</a>
%Y A159096 A056986 A158005 A158423
%K A159096 nonn
%O A159096 6,2
%A A159096 _R. H. Hardin_ Apr 05 2009