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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.

A355669 a(n) = n! * Sum_{d|n} (d!)^(d - n/d).

Table of values

n a(n)
1 1
2 6
3 222
4 331824
5 24883200120
6 139314069504005400
7 82606411253903523840005040
8 6984964247141514123629140377623274720
9 109110688415571316480344899355894085582848000725760
10 395940866122425193243875570782668457763038822400000006270570482400

List of values

[1, 6, 222, 331824, 24883200120, 139314069504005400, 82606411253903523840005040, 6984964247141514123629140377623274720, 109110688415571316480344899355894085582848000725760, 395940866122425193243875570782668457763038822400000006270570482400]

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

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