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) |
|---|---|
| 3 | 0 |
| 4 | 1 |
| 5 | 5 |
| 6 | 25 |
| 7 | 133 |
| 8 | 859 |
| 9 | 5781 |
| 10 | 40923 |
| 11 | 313005 |
| 12 | 2541251 |
[0,1,5,25,133,859,5781,40923,313005,2541251] |