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.

A208652 Product{i*C(n,i) : 1<=i<=floor[(n+1)/2]}.

Table of values

n a(n)
1 1
2 2
3 18
4 48
5 3000
6 10800
7 4321800
8 21073920
9 51849745920
10 342921600000
11 5062554438480000
12 45444644517888000
13 3960533401513405516800
14 48272757747179554068480
15 24547182197052103038450000000

List of values

[1, 2, 18, 48, 3000, 10800, 4321800, 21073920, 51849745920, 342921600000, 5062554438480000, 45444644517888000, 3960533401513405516800, 48272757747179554068480, 24547182197052103038450000000]

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

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