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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 1 |
| 3 | 64 |
| 4 | 7431 |
| 5 | 1715876 |
| 6 | 655110323 |
| 7 | 372565312967 |
| 8 | 294961986584223 |
| 9 | 310044461434740982 |
| 10 | 417747271801946191399 |
| 11 | 702143923935041675022156 |
| 12 | 1440542259736400467662865991 |
| 13 | 3543917937671552230039341072619 |
| 14 | 10300091517989144989707891748204281 |
| 15 | 34923380149186824044791021305086297101 |
| 16 | 136645283241569758193338091605962393536127 |
[1,1,64,7431,1715876,655110323,372565312967, 294961986584223,310044461434740982, 417747271801946191399,702143923935041675022156, 1440542259736400467662865991, 3543917937671552230039341072619, 10300091517989144989707891748204281, 34923380149186824044791021305086297101, 136645283241569758193338091605962393536127] |