Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
1 | 1 |
2 | 2 |
3 | 8 |
4 | 42 |
5 | 288 |
6 | 2280 |
7 | 21600 |
8 | 226800 |
9 | 2701440 |
10 | 35199360 |
11 | 504403200 |
12 | 7783776000 |
13 | 130288435200 |
14 | 2322678758400 |
15 | 44286571929600 |
16 | 894449267712000 |
17 | 19144352747520000 |
18 | 431093162852352000 |
19 | 10224590808047616000 |
20 | 253873324553232384000 |
21 | 6602896050191400960000 |
[1,2,8,42,288,2280,21600,226800,2701440,35199360, 504403200,7783776000,130288435200,2322678758400, 44286571929600,894449267712000,19144352747520000, 431093162852352000,10224590808047616000, 253873324553232384000,6602896050191400960000] |