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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.

A334746 Denominator of Sum_{k=1..n} 1/(prime(k) - 1)^2.

Table of values

n a(n)
1 1
2 4
3 16
4 144
5 3600
6 1800
7 57600
8 518400
9 62726400
10 3073593600
11 614718720
12 614718720
13 3073593600
14 3073593600
15 1625931014400
16 274782341433600
17 231091949145657600
18 231091949145657600
19 231091949145657600
20 231091949145657600
21 77030649715219200

List of values

[1, 4, 16, 144, 3600, 1800, 57600, 518400, 62726400, 3073593600, 614718720, 614718720, 3073593600, 3073593600, 1625931014400, 274782341433600, 231091949145657600, 231091949145657600, 231091949145657600, 231091949145657600, 77030649715219200]

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

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