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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 7 |
| 3 | 84 |
| 4 | 1486 |
| 5 | 35753 |
| 6 | 1111931 |
| 7 | 43150593 |
| 8 | 2035666985 |
| 9 | 114412223081 |
| 10 | 7538224510181 |
| 11 | 574552299138202 |
| 12 | 50096579094908148 |
| 13 | 4949493445607316419 |
| 14 | 549534510282406667069 |
| 15 | 68071071679372210762156 |
| 16 | 9347203754680124767253730 |
| 17 | 1414740620049957735248175695 |
[1,1,7,84,1486,35753,1111931,43150593,2035666985, 114412223081,7538224510181,574552299138202, 50096579094908148,4949493445607316419, 549534510282406667069,68071071679372210762156, 9347203754680124767253730, 1414740620049957735248175695] |