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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 350 |
| 3 | 347633000 |
| 4 | 101143578356902991250 |
| 5 | 422044560230008480282938965899488406272 |
| 6 | 1208807563912714402070105775158111317516306396248661153276031151000 |
[1,2,350,347633000,101143578356902991250, 422044560230008480282938965899488406272, 12088075639127144020701057751581113175163063962486\ 61153276031151000] |