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.

A211374 Product of all the parts in the partitions of n into exactly 2 parts.

Table of values

n a(n)
1 1
2 1
3 2
4 12
5 24
6 360
7 720
8 20160
9 40320
10 1814400
11 3628800
12 239500800
13 479001600
14 43589145600
15 87178291200
16 10461394944000
17 20922789888000
18 3201186852864000
19 6402373705728000
20 1216451004088320000
21 2432902008176640000
22 562000363888803840000

List of values

[1, 1, 2, 12, 24, 360, 720, 20160, 40320, 1814400, 3628800, 239500800, 479001600, 43589145600, 87178291200, 10461394944000, 20922789888000, 3201186852864000, 6402373705728000, 1216451004088320000, 2432902008176640000, 562000363888803840000]

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

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