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.

A090672 a(n) = (n^2-1)*n!/3.

Table of values

n a(n)
1 0
2 2
3 16
4 120
5 960
6 8400
7 80640
8 846720
9 9676800
10 119750400
11 1596672000
12 22832409600
13 348713164800
14 5666588928000
15 97639686144000
16 1778437140480000
17 34145993097216000
18 689322235650048000
19 14597412049059840000
20 323575967087493120000
21 7493338185184051200000

List of values

[0, 2, 16, 120, 960, 8400, 80640, 846720, 9676800, 119750400, 1596672000, 22832409600, 348713164800, 5666588928000, 97639686144000, 1778437140480000, 34145993097216000, 689322235650048000, 14597412049059840000, 323575967087493120000, 7493338185184051200000]

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

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