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.

A052849 a(0) = 0; a(n) = 2*n! (n >= 1).

Table of values

n a(n)
0 0
1 2
2 4
3 12
4 48
5 240
6 1440
7 10080
8 80640
9 725760
10 7257600
11 79833600
12 958003200
13 12454041600
14 174356582400
15 2615348736000
16 41845579776000
17 711374856192000
18 12804747411456000
19 243290200817664000
20 4865804016353280000
21 102181884343418880000
22 2248001455555215360000

List of values

[0, 2, 4, 12, 48, 240, 1440, 10080, 80640, 725760, 7257600, 79833600, 958003200, 12454041600, 174356582400, 2615348736000, 41845579776000, 711374856192000, 12804747411456000, 243290200817664000, 4865804016353280000, 102181884343418880000, 2248001455555215360000]

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

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