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.

A110468 a(n) = (2*n + 1)!/(n + 1).

Table of values

n a(n)
0 1
1 3
2 40
3 1260
4 72576
5 6652800
6 889574400
7 163459296000
8 39520825344000
9 12164510040883200
10 4644631106519040000
11 2154334728240414720000
12 1193170003333152768000000
13 777776389315596582912000000
14 589450799582646796969574400000
15 513927415886120176107847680000000

List of values

[1, 3, 40, 1260, 72576, 6652800, 889574400, 163459296000, 39520825344000, 12164510040883200, 4644631106519040000, 2154334728240414720000, 1193170003333152768000000, 777776389315596582912000000, 589450799582646796969574400000, 513927415886120176107847680000000]

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

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