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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 19 |
| 3 | 415 |
| 4 | 10147 |
| 5 | 261331 |
| 6 | 7100821 |
| 7 | 200148649 |
| 8 | 5796870115 |
| 9 | 171475190227 |
| 10 | 5158851352489 |
| 11 | 157366288875709 |
| 12 | 4855940642591941 |
| 13 | 151309409779981285 |
| 14 | 4754260599949620163 |
| 15 | 150466404665460290335 |
| 16 | 4792275283921293214435 |
[1,19,415,10147,261331,7100821,200148649, 5796870115,171475190227,5158851352489, 157366288875709,4855940642591941, 151309409779981285,4754260599949620163, 150466404665460290335,4792275283921293214435] |