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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.

A325617 Multinomial coefficient of the prime signature of n!.

Table of values

n a(n)
0 1
1 1
2 1
3 2
4 4
5 20
6 105
7 840
8 3960
9 51480
10 675675
11 10810800
12 139675536
13 2793510720
14 58663725120
15 1799020903680
16 26985313555200
17 782574093100800
18 25992639520848000
19 857757104187984000
20 30021498646579440000
21 1563341744336692320000
22 64179292662243158400000

List of values

[1, 1, 1, 2, 4, 20, 105, 840, 3960, 51480, 675675, 10810800, 139675536, 2793510720, 58663725120, 1799020903680, 26985313555200, 782574093100800, 25992639520848000, 857757104187984000, 30021498646579440000, 1563341744336692320000, 64179292662243158400000]

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

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