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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.

A306729 a(n) = Product_{i=0..n, j=0..n} (i! + j!).

Table of values

n a(n)
0 2
1 16
2 5184
3 9559130112
4 109045776752640000000000
5 27488263744928988967331390258832998400000000000
6 1147897050240877062218236820013018349788772091106840426434074807527014400000000000000

List of values

[2, 16, 5184, 9559130112, 109045776752640000000000, 27488263744928988967331390258832998400000000000, 1147897050240877062218236820013018349788772091106840426434074807527014400000000000000]

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

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