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.

A175430 a(n) = (n-1)! * (n+1)!.

Table of values

n a(n)
1 2
2 6
3 48
4 720
5 17280
6 604800
7 29030400
8 1828915200
9 146313216000
10 14485008384000
11 1738201006080000
12 248562743869440000
13 41758540970065920000
14 8142915489162854400000
15 1824013069572479385600000
16 465123332740982243328000000
17 133955519829402886078464000000

List of values

[2, 6, 48, 720, 17280, 604800, 29030400, 1828915200, 146313216000, 14485008384000, 1738201006080000, 248562743869440000, 41758540970065920000, 8142915489162854400000, 1824013069572479385600000, 465123332740982243328000000, 133955519829402886078464000000]

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

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