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 A323806 #7 Jan 28 2019 18:31:02
%S A323806 0,6894720,125516160,1586345040,16759964880,158705713320,
%T A323806 1400777573016,11828309150490,97341704612482,791331470025483,
%U A323806 6418149695049249,52479230675397803,435575075749110957,3649912769065068556,30745771540084745428,259496462836442105424
%N A323806 Number of permutations p of [n] such that max_{j=1..n} |p(j)-j| = 10.
%H A323806 Alois P. Heinz, <a href="/A323806/b323806.txt">Table of n, a(n) for n = 10..100</a>
%F A323806 a(n) = A154659(n) - A154658(n).
%Y A323806 Column k=10 of A130152.
%Y A323806 Cf. A154658, A154659.
%K A323806 nonn
%O A323806 10,2
%A A323806 _Alois P. Heinz_, Jan 28 2019