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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 6 |
| 3 | 61 |
| 4 | 1021 |
| 5 | 22801 |
| 6 | 654271 |
| 7 | 22642171 |
| 8 | 922787096 |
| 9 | 43149037646 |
| 10 | 2279170742696 |
| 11 | 134100508257596 |
| 12 | 8698551285481371 |
| 13 | 616549939781495121 |
| 14 | 47409430650407225871 |
| 15 | 3930455865337807339246 |
| 16 | 349471231024984588597871 |
| 17 | 33172028312913149756842121 |
[1,6,61,1021,22801,654271,22642171,922787096, 43149037646,2279170742696,134100508257596, 8698551285481371,616549939781495121, 47409430650407225871,3930455865337807339246, 349471231024984588597871, 33172028312913149756842121] |