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 A322146 #12 Nov 28 2018 08:49:12 %S A322146 1,0,2,124948668,174702663548149248,2360719028641481267959955040, %T A322146 211490077066069537208795610578715159120, %U A322146 94446414948214202156311984061437135600678877848560 %N A322146 Number of permutations of 10 copies of 1..n with no element equal to another within a distance of 1. %H A322146 Seiichi Manyama, <a href="/A322146/b322146.txt">Table of n, a(n) for n = 0..59</a> %F A322146 a(n) = n! * A321670(n). %F A322146 a(n) = Integral_{0..infinity} (Sum_{k=1..10} (-1)^(10-k) * binomial(9, 10-k) * x^k/k!)^n * exp(-x) dx. %Y A322146 Row 10 of A322093. %Y A322146 Cf. A321670, A322127, A322128. %K A322146 nonn %O A322146 0,3 %A A322146 _Seiichi Manyama_, Nov 28 2018