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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 76 |
| 3 | 3904 |
| 4 | 342414 |
| 5 | 38208073 |
| 6 | 5040999127 |
| 7 | 713917706692 |
| 8 | 104761044616109 |
| 9 | 15592916566103795 |
| 10 | 2336049130708319067 |
| 11 | 350907921051582692624 |
| 12 | 52773848213221906515449 |
| 13 | 7940710788554386562472855 |
[2,76,3904,342414,38208073,5040999127, 713917706692,104761044616109,15592916566103795, 2336049130708319067,350907921051582692624, 52773848213221906515449,7940710788554386562472855] |