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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 5 |
| 3 | 65 |
| 4 | 1449 |
| 5 | 46561 |
| 6 | 1968525 |
| 7 | 103565057 |
| 8 | 6531391313 |
| 9 | 480749649601 |
| 10 | 40482981221781 |
| 11 | 3840053099665729 |
| 12 | 405275779792031225 |
| 13 | 47113209228513626017 |
| 14 | 5982545638922153790749 |
| 15 | 823992221632687352744961 |
| 16 | 122360935410018418223907489 |
| 17 | 19489013519781051891806113153 |
[1,5,65,1449,46561,1968525,103565057,6531391313, 480749649601,40482981221781,3840053099665729, 405275779792031225,47113209228513626017, 5982545638922153790749,823992221632687352744961, 122360935410018418223907489, 19489013519781051891806113153] |