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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 0 |
| 2 | 0 |
| 3 | 0 |
| 4 | 7 |
| 5 | 416 |
| 6 | 24244 |
| 7 | 1951352 |
| 8 | 265517333 |
| 9 | 68652859502 |
| 10 | 35182667175398 |
| 11 | 36028748718835272 |
| 12 | 73786974794973865449 |
| 13 | 302231454853009287213496 |
| 14 | 2475880078568912926825399800 |
| 15 | 40564819207303268441662426947840 |
| 16 | 1329227995784915869870199216532048487 |
[0,0,0,0,7,416,24244,1951352,265517333, 68652859502,35182667175398,36028748718835272, 73786974794973865449,302231454853009287213496, 2475880078568912926825399800, 40564819207303268441662426947840, 1329227995784915869870199216532048487] |