Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 3 |
4 | 8 |
5 | 30 |
6 | 720 |
7 | 210 |
8 | 40320 |
9 | 90720 |
10 | 1209600 |
11 | 226800 |
12 | 43545600 |
13 | 5241600 |
14 | 7925299200 |
15 | 14859936000 |
16 | 634023936000 |
17 | 8083805184000 |
18 | 582033973248000 |
19 | 115194223872000 |
20 | 221172909834240000 |
21 | 1161157776629760000 |
[1,1,2,3,8,30,720,210,40320,90720,1209600,226800, 43545600,5241600,7925299200,14859936000, 634023936000,8083805184000,582033973248000, 115194223872000,221172909834240000, 1161157776629760000] |