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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) |
|---|---|
| 2 | 0 |
| 3 | 0 |
| 4 | 0 |
| 5 | 252 |
| 6 | 1920 |
| 7 | 16240 |
| 8 | 103936 |
| 9 | 584640 |
| 10 | 3056640 |
| 11 | 15265536 |
[0,0,0,252,1920,16240,103936,584640,3056640, 15265536] |