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| n | a(n) |
|---|---|
| 0 | 2 |
| 1 | 3 |
| 2 | 5 |
| 3 | 7 |
| 4 | 19 |
| 5 | 71 |
| 6 | 251 |
| 7 | 3433 |
| 8 | 48619 |
| 9 | 2704157 |
| 10 | 155117519 |
| 11 | 35345263801 |
| 12 | 2104098963721 |
| 13 | 30067266499541039 |
| 14 | 6892620648693261354601 |
| 15 | 6637553085023755473070799 |
| 16 | 410795449442059149332177041 |
| 17 | 399608854866744452032002440111 |
| 18 | 1520803477811874490019821888415218657 |
[2,3,5,7,19,71,251,3433,48619,2704157,155117519, 35345263801,2104098963721,30067266499541039, 6892620648693261354601,6637553085023755473070799, 410795449442059149332177041, 399608854866744452032002440111, 1520803477811874490019821888415218657] |