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.

A193282 a(n) = (n!/floor(n/2)!)^2.

Table of values

n a(n)
0 1
1 1
2 4
3 36
4 144
5 3600
6 14400
7 705600
8 2822400
9 228614400
10 914457600
11 110649369600
12 442597478400
13 74798973849600
14 299195895398400
15 67319076464640000
16 269276305858560000
17 77820852393123840000
18 311283409572495360000
19 112373310855670824960000

List of values

[1, 1, 4, 36, 144, 3600, 14400, 705600, 2822400, 228614400, 914457600, 110649369600, 442597478400, 74798973849600, 299195895398400, 67319076464640000, 269276305858560000, 77820852393123840000, 311283409572495360000, 112373310855670824960000]

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

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