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.

A048617 a(n) = 2*(n!)^2.

Table of values

n a(n)
0 2
1 2
2 8
3 72
4 1152
5 28800
6 1036800
7 50803200
8 3251404800
9 263363788800
10 26336378880000
11 3186701844480000
12 458885065605120000
13 77551576087265280000
14 15200108913103994880000
15 3420024505448398848000000
16 875526273394790105088000000
17 253027093011094340370432000000

List of values

[2, 2, 8, 72, 1152, 28800, 1036800, 50803200, 3251404800, 263363788800, 26336378880000, 3186701844480000, 458885065605120000, 77551576087265280000, 15200108913103994880000, 3420024505448398848000000, 875526273394790105088000000, 253027093011094340370432000000]

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

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