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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 17 |
| 2 | 569 |
| 3 | 19193 |
| 4 | 647441 |
| 5 | 21840257 |
| 6 | 736741769 |
| 7 | 24852657833 |
| 8 | 838359690401 |
| 9 | 28280555553137 |
| 10 | 953993651593049 |
| 11 | 32181259154185433 |
| 12 | 1085576868377967281 |
| 13 | 36619982192463218657 |
| 14 | 1235309202728347728809 |
| 15 | 41670933053031653811593 |
| 16 | 1405693940978521100034881 |
[1,17,569,19193,647441,21840257,736741769, 24852657833,838359690401,28280555553137, 953993651593049,32181259154185433, 1085576868377967281,36619982192463218657, 1235309202728347728809,41670933053031653811593, 1405693940978521100034881] |