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 A360462 #8 Feb 08 2023 09:36:47 %S A360462 1,1,2,6,24,120,720,5040,40320,362880,3548160,37054080,416551680, %T A360462 5050368000,65944535040,924630958080,13873661706240,221978587299840, %U A360462 3774394191052800,67494538767237120,1276009602375352320,25429720417085030400 %N A360462 Number of permutations p of [n] such that |p(i+9) - p(i)| <> 9 for i in [n-9]. %Y A360462 Column k=9 of A333706. %Y A360462 Cf. A000142. %K A360462 nonn %O A360462 0,3 %A A360462 _Alois P. Heinz_, Feb 07 2023