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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.

A376247 a(n) is the denominator of Sum_{k = 1..n} 1 / (A376244(k) * A376245(k)).

Table of values

n a(n)
1 3
2 12
3 60
4 120
5 840
6 4760
7 7582680
8 3026164178520
9 277505140475561534945640
10 260165888480949800316206335248860247693882960
11 1735545885361077128120249087863835952607412447268583818069629193850545735375261166814160

List of values

[3, 12, 60, 120, 840, 4760, 7582680, 3026164178520, 277505140475561534945640, 260165888480949800316206335248860247693882960, 1735545885361077128120249087863835952607412447268583818069629193850545735375261166814160]

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

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