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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) |
|---|---|
| 1 | 1 |
| 2 | 1 |
| 3 | 9 |
| 4 | 31 |
| 5 | 308 |
| 6 | 3809 |
| 7 | 63995 |
| 8 | 1152784 |
| 9 | 32319312 |
[1,1,9,31,308,3809,63995,1152784,32319312] |