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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | 0 |
| 3 | 1 |
| 4 | 2 |
| 5 | 59 |
| 6 | 1092 |
| 7 | 51412 |
| 8 | 3420384 |
| 9 | 382912420 |
| 10 | 68021283668 |
| 11 | 19474443244283 |
| 12 | 9025228384142396 |
| 13 | 6825775070789988992 |
| 14 | 8486240219059861120000 |
| 15 | 17454179683586670023001218 |
| 16 | 59698062960218238908531091872 |
[0,1,0,1,2,59,1092,51412,3420384,382912420, 68021283668,19474443244283,9025228384142396, 6825775070789988992,8486240219059861120000, 17454179683586670023001218, 59698062960218238908531091872] |