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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.

A263416 a(n) = Product_{k=0..n} (3*k+1)^(n-k).

Table of values

n a(n)
0 1
1 1
2 4
3 112
4 31360
5 114150400
6 6648119296000
7 7356542888181760000
8 179090034163620983603200000
9 108995627512253039588776345600000000
10 1857397104331364341705287836001894400000000000
11 981210407605679794692064339146706741991833600000000000000

List of values

[1, 1, 4, 112, 31360, 114150400, 6648119296000, 7356542888181760000, 179090034163620983603200000, 108995627512253039588776345600000000, 1857397104331364341705287836001894400000000000, 981210407605679794692064339146706741991833600000000000000]

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

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