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 A321052 #7 Oct 26 2018 20:01:14 %S A321052 0,574,5571,34948,181193,870934,4113244,19845700,99472963,505871096, %T A321052 2572439079,12975021278,64715221044,319501249574,1566516774344, %U A321052 7660714576044,37445731303872,183081927465284,895275467752721,4376669424005308,21379883128454905 %N A321052 Number of permutations of [n] with no fixed points where the maximal displacement of an element equals six. %H A321052 Alois P. Heinz, <a href="/A321052/b321052.txt">Table of n, a(n) for n = 6..1000</a> %F A321052 a(n) = A259779(n) - A259778(n). %Y A321052 Column k=6 of A259784. %Y A321052 Cf. A259778, A259779. %K A321052 nonn,easy %O A321052 6,2 %A A321052 _Alois P. Heinz_, Oct 26 2018