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 | 1 |
| 5 | 1 |
| 6 | 4 |
| 7 | 10 |
| 8 | 33 |
| 9 | 148 |
| 10 | 827 |
| 11 | 5565 |
| 12 | 43886 |
[0,0,0,1,1,4,10,33,148,827,5565,43886] |