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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 7 |
| 3 | 147 |
| 4 | 14481 |
| 5 | 6183605 |
| 6 | 19196862399 |
| 7 | 206667738393577 |
| 8 | 6727813723143519624 |
| 9 | 1368162090055314881480420 |
| 10 | 1237384559488983889303951699285 |
| 11 | 3014186760620644058660289396656407831 |
| 12 | 34123084437870355957570087446546456971276065 |
[1,2,7,147,14481,6183605,19196862399, 206667738393577,6727813723143519624, 1368162090055314881480420, 1237384559488983889303951699285, 3014186760620644058660289396656407831, 34123084437870355957570087446546456971276065] |