Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
1 | 1 |
2 | 2 |
3 | 4 |
4 | 10 |
5 | 40 |
6 | 280 |
7 | 3400 |
8 | 68920 |
9 | 2296600 |
10 | 124819000 |
11 | 11029312600 |
12 | 1581276391000 |
13 | 367448845658200 |
14 | 138299522459392600 |
15 | 84276864426837376600 |
16 | 83129040425047907584600 |
17 | 132705616446736897029760600 |
18 | 342829213074356555028732544600 |
[1,2,4,10,40,280,3400,68920,2296600,124819000, 11029312600,1581276391000,367448845658200, 138299522459392600,84276864426837376600, 83129040425047907584600, 132705616446736897029760600, 342829213074356555028732544600] |