cp's OEIS Frontend

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.

A323805 Number of permutations p of [n] such that max_{j=1..n} |p(j)-j| = 9.

Original entry on oeis.org

0, 685440, 11123280, 124658640, 1166388360, 9804325176, 77191636698, 585120530242, 4352418785279, 32202026068621, 240183024181127, 1821246237562657, 13946936520272756, 107314021044232924, 826507136709547152, 6354476077005199296, 48686592289143593088
Offset: 9

Views

Author

Alois P. Heinz, Jan 28 2019

Keywords

Crossrefs

Column k=9 of A130152.

Formula

a(n) = A154658(n) - A154657(n).