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.

A109095 Numbers N such that N! is the product of exactly two smaller factorials (larger than 1).

Table of values

n a(n)
1 6
2 10
3 24
4 120
5 720
6 5040
7 40320
8 362880
9 3628800
10 39916800
11 479001600
12 6227020800
13 87178291200
14 1307674368000
15 20922789888000
16 355687428096000
17 6402373705728000
18 121645100408832000
19 2432902008176640000
20 51090942171709440000
21 1124000727777607680000
22 25852016738884976640000

List of values

[6, 10, 24, 120, 720, 5040, 40320, 362880, 3628800, 39916800, 479001600, 6227020800, 87178291200, 1307674368000, 20922789888000, 355687428096000, 6402373705728000, 121645100408832000, 2432902008176640000, 51090942171709440000, 1124000727777607680000, 25852016738884976640000]

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

Content is available under The OEIS End-User License Agreement.