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.

A184358 a(n) = (n+1)!^2/2^n.

Table of values

n a(n)
0 1
1 2
2 9
3 72
4 900
5 16200
6 396900
7 12700800
8 514382400
9 25719120000
10 1556006760000
11 112032486720000
12 9466745127840000
13 927741022528320000
14 104370865034436000000
15 13359470724407808000000
16 1930443519676928256000000
17 312731850187662377472000000

List of values

[1, 2, 9, 72, 900, 16200, 396900, 12700800, 514382400, 25719120000, 1556006760000, 112032486720000, 9466745127840000, 927741022528320000, 104370865034436000000, 13359470724407808000000, 1930443519676928256000000, 312731850187662377472000000]

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

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