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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.

A240993 A000142 (n+1) * A002109(n), a product of factorials and hyperfactorials.

Table of values

n a(n)
0 1
1 2
2 24
3 2592
4 3317760
5 62208000000
6 20316635136000000
7 133852981198454784000000
8 20211123400293732996612096000000
9 78302033109811407811828935756349440000000
10 8613223642079254859301182933198438400000000000000000

List of values

[1, 2, 24, 2592, 3317760, 62208000000, 20316635136000000, 133852981198454784000000, 20211123400293732996612096000000, 78302033109811407811828935756349440000000, 8613223642079254859301182933198438400000000000000000]

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

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