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Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 0 |
| 2 | 0 |
| 3 | 0 |
| 4 | 0 |
| 5 | 0 |
| 6 | 0 |
| 7 | 694576080 |
| 8 | 143509310280 |
| 9 | 15936817879920 |
| 10 | 1078304717952000 |
| 11 | 48803633732745360 |
| 12 | 1584869865891989040 |
| 13 | 38947346386343473680 |
| 14 | 754857976136114211840 |
| 15 | 11923236968042140120800 |
| 16 | 157595248120066189368390 |
[1,0,0,0,0,0,0,694576080,143509310280, 15936817879920,1078304717952000,48803633732745360, 1584869865891989040,38947346386343473680, 754857976136114211840,11923236968042140120800, 157595248120066189368390] |