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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 692 |
| 3 | 18687 |
| 4 | 1957192 |
| 5 | 619319180 |
| 6 | 527457882126 |
| 7 | 1226373476385199 |
| 8 | 6897556038713219072 |
| 9 | 101539033269801820825743 |
| 10 | 3421092256089716422594644400 |
| 11 | 290708740669462708301488632766350 |
| 12 | 55192415971099812757135585564036238784 |
[1,1,692,18687,1957192,619319180,527457882126, 1226373476385199,6897556038713219072, 101539033269801820825743, 3421092256089716422594644400, 290708740669462708301488632766350, 55192415971099812757135585564036238784] |