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 A159151 #4 Feb 16 2025 08:33:10
%S A159151 1,37,894,18218,343241,6243632,112239270,2021569098,36800674266,
%T A159151 681129244378
%N A159151 Number of permutations of 1..n containing the relative rank sequence { 236514 } at any spacing.
%C A159151 Same series for 415632 362145 541263 431562 346215 265134 512643
%H A159151 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/PermutationPattern.html">Permutation Pattern</a>
%Y A159151 A056986 A158005 A158423
%K A159151 nonn
%O A159151 6,2
%A A159151 _R. H. Hardin_ Apr 05 2009