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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 3 |
| 3 | 70 |
| 4 | 19355 |
| 5 | 66462606 |
| 6 | 2977635137862 |
| 7 | 1803595358964773088 |
| 8 | 15138592322753242235338875 |
| 9 | 1793196665025885172290508971592750 |
| 10 | 3040059281615704147007085764679679740691838 |
| 11 | 74597015246986083384362428357508730776063716190667288 |
| 12 | 26737694395324301026230134763403079891362936970900741153038680278 |
[1,1,3,70,19355,66462606,2977635137862, 1803595358964773088,15138592322753242235338875, 1793196665025885172290508971592750, 3040059281615704147007085764679679740691838, 74597015246986083384362428357508730776063716190667\ 288, 26737694395324301026230134763403079891362936970900\ 741153038680278] |