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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.

A051675 "Second factorials": Product_{k=1..n} k^(k^2).

Table of values

n a(n)
1 1
2 16
3 314928
4 1352605460594688
5 403107840000000000000000000000000
6 4157825501361955044460594652554199040000000000000000000000000

List of values

[1, 16, 314928, 1352605460594688, 403107840000000000000000000000000, 4157825501361955044460594652554199040000000000000000000000000]

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

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