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 A321053 #6 Oct 26 2018 20:10:58 %S A321053 0,3973,46662,359724,2270840,12994207,71401928,389384029,2162806868, %T A321053 12393816965,72063175820,420431229772,2443816138204,14098735154983, %U A321053 80635213447724,457661900843292,2583741730021382,14552232847553984,81904772313605164,461011600699499344 %N A321053 Number of permutations of [n] with no fixed points where the maximal displacement of an element equals seven. %H A321053 Alois P. Heinz, <a href="/A321053/b321053.txt">Table of n, a(n) for n = 7..1000</a> %F A321053 a(n) = A259780(n) - A259779(n). %Y A321053 Column k=7 of A259784. %Y A321053 Cf. A259779, A259780. %K A321053 nonn %O A321053 7,2 %A A321053 _Alois P. Heinz_, Oct 26 2018