The OEIS is supported by the many generous donors to the OEIS Foundation.
Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 0 |
| 3 | 0 |
| 4 | 4 |
| 5 | 12 |
| 6 | 28 |
| 7 | 136 |
| 8 | 488 |
| 9 | 2624 |
| 10 | 12420 |
| 11 | 64120 |
| 12 | 313584 |
| 13 | 1675648 |
| 14 | 8536072 |
[0,0,0,4,12,28,136,488,2624,12420,64120,313584, 1675648,8536072] |