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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.

A374872 Obverse convolution (2n+1)**(n!); see Comments.

Table of values

n a(n)
0 2
1 8
2 72
3 1680
4 126000
5 38811960
6 61785091368
7 616892274180000
8 45374160012072012000
9 28175746072918961153889000
10 166250736077540332478371155891000
11 10349136183590980028259106116944710102320
12 7466148323412227422384379930251940448396455130000

List of values

[2, 8, 72, 1680, 126000, 38811960, 61785091368, 616892274180000, 45374160012072012000, 28175746072918961153889000, 166250736077540332478371155891000, 10349136183590980028259106116944710102320, 7466148323412227422384379930251940448396455130000]

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

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