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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 83 |
| 3 | 241 |
| 4 | 6599 |
| 5 | 126551 |
| 6 | 1544479 |
| 7 | 4864121 |
| 8 | 60686737 |
| 9 | 1966194317 |
| 10 | 63481708607 |
| 11 | 1161468891953 |
| 12 | 14674403807731 |
| 13 | 22128836547913 |
| 14 | 399379081448429 |
| 15 | 5410229663058299 |
| 16 | 248264241666057167 |
[2,83,241,6599,126551,1544479,4864121,60686737, 1966194317,63481708607,1161468891953, 14674403807731,22128836547913,399379081448429, 5410229663058299,248264241666057167] |