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| n | a(n) |
|---|---|
| 1 | 309 |
| 2 | 3921 |
| 3 | 50831 |
| 4 | 663307 |
| 5 | 8671957 |
| 6 | 113445117 |
| 7 | 1484345363 |
| 8 | 19422725739 |
| 9 | 254151937033 |
| 10 | 3325670716433 |
| 11 | 43517693556387 |
| 12 | 569446264259255 |
| 13 | 7451431382751933 |
| 14 | 97504955911036833 |
| 15 | 1275891317091048423 |
[309,3921,50831,663307,8671957,113445117, 1484345363,19422725739,254151937033,3325670716433, 43517693556387,569446264259255,7451431382751933, 97504955911036833,1275891317091048423] |