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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 | 4 |
| 3 | 1 |
| 4 | 5 |
| 5 | 147 |
| 6 | 1155 |
| 7 | 35780 |
| 8 | 2163993 |
| 9 | 117407676 |
[1,4,1,5,147,1155,35780,2163993,117407676] |