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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 3 |
| 3 | 7 |
| 4 | 13 |
| 5 | 53 |
| 6 | 79 |
| 7 | 659 |
| 8 | 6089 |
| 9 | 104831 |
| 10 | 955657 |
| 11 | 20278459 |
| 12 | 103303609 |
| 13 | 557074963 |
| 14 | 1877832107 |
| 15 | 2991982033 |
| 16 | 6747646247 |
| 17 | 12731610313 |
| 18 | 179006226563 |
| 19 | 10944843040969 |
| 20 | 76971913739909 |
| 21 | 98861599821847 |
| 22 | 7568563814118343 |
| 23 | 492154371117335989 |
| 24 | 8381761436622948499 |
| 25 | 177001298911316590457 |
| 26 | 6919814180414592924821 |
[2,3,7,13,53,79,659,6089,104831,955657,20278459, 103303609,557074963,1877832107,2991982033, 6747646247,12731610313,179006226563, 10944843040969,76971913739909,98861599821847, 7568563814118343,492154371117335989, 8381761436622948499,177001298911316590457, 6919814180414592924821] |