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.

A323803 Number of permutations p of [n] such that max_{j=1..n} |p(j)-j| = 7.

Table of values

n a(n)
7 0
8 9360
9 115080
10 966456
11 6791994
12 43414690
13 264609407
14 1583571277
15 9541763303
16 58695274369
17 364677611732
18 2271214783228
19 14108312731920
20 87159560106240
21 534932437294080
22 3263015911353024
23 19810718453429904
24 119955619407015668
25 725303963303861844

List of values

[0, 9360, 115080, 966456, 6791994, 43414690, 264609407, 1583571277, 9541763303, 58695274369, 364677611732, 2271214783228, 14108312731920, 87159560106240, 534932437294080, 3263015911353024, 19810718453429904, 119955619407015668, 725303963303861844]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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