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 | 1 |
| 4 | 0 |
| 5 | 2 |
| 6 | 2 |
| 7 | 7 |
| 8 | 16 |
| 9 | 47 |
| 10 | 125 |
| 11 | 365 |
| 12 | 1015 |
| 13 | 3069 |
| 14 | 8813 |
| 15 | 26712 |
| 16 | 78717 |
[0,0,1,0,2,2,7,16,47,125,365,1015,3069,8813,26712, 78717] |