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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) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 0 |
| 3 | 2 |
| 4 | 12 |
| 5 | 64 |
| 6 | 220 |
| 7 | 1886 |
| 8 | 16346 |
| 9 | 142420 |
| 10 | 1302106 |
| 11 | 14467384 |
| 12 | 177079358 |
[1,1,0,2,12,64,220,1886,16346,142420,1302106, 14467384,177079358] |