cp's OEIS Frontend

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.

A382783 Denominators arising in the expansion of Sum_{k>=1} (1/(4k^2-1)^n) in even powers of Pi.

Table of values

n a(n)
1 2
2 16
3 64
4 768
5 3072
6 61440
7 122880
8 20643840
9 9175040
10 2972712960
11 5945425920
12 2615987404800
13 5231974809600
14 816188070297600
15 108825076039680
16 2742391916199936000
17 10969567664799744000
18 745930601206382592000
19 1491861202412765184000
20 2040866124900662771712000

List of values

[2, 16, 64, 768, 3072, 61440, 122880, 20643840, 9175040, 2972712960, 5945425920, 2615987404800, 5231974809600, 816188070297600, 108825076039680, 2742391916199936000, 10969567664799744000, 745930601206382592000, 1491861202412765184000, 2040866124900662771712000]

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

Content is available under The OEIS End-User License Agreement.