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.

A212158 a(n) = ((prime(n) - 1)/2)!, n >= 2.

Table of values

n a(n)
2 1
3 2
4 6
5 120
6 720
7 40320
8 362880
9 39916800
10 87178291200
11 1307674368000
12 6402373705728000
13 2432902008176640000
14 51090942171709440000
15 25852016738884976640000
16 403291461126605635584000000
17 8841761993739701954543616000000

List of values

[1, 2, 6, 120, 720, 40320, 362880, 39916800, 87178291200, 1307674368000, 6402373705728000, 2432902008176640000, 51090942171709440000, 25852016738884976640000, 403291461126605635584000000, 8841761993739701954543616000000]

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

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