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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.

A087754 a(n) = (C(2p,p)-2) / p^3, where p = prime(n).

Table of values

n a(n)
3 2
4 10
5 530
6 4734
7 474986
8 5153122
9 676701794
10 1232820800342
11 15623119507746
12 34472401720246110
13 6163354867874693078
14 83483882991733501114
15 15658391111267929558466
16 42132263940113324754864134

List of values

[2, 10, 530, 4734, 474986, 5153122, 676701794, 1232820800342, 15623119507746, 34472401720246110, 6163354867874693078, 83483882991733501114, 15658391111267929558466, 42132263940113324754864134]

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

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