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| n | a(n) |
|---|---|
| 1 | 3 |
| 2 | 5 |
| 3 | 23 |
| 4 | 37 |
| 5 | 97 |
| 6 | 157 |
| 7 | 1741 |
| 8 | 11933 |
| 9 | 50549 |
| 10 | 214129 |
| 11 | 560597 |
| 12 | 16276621 |
| 13 | 180510493 |
| 14 | 398386576261 |
| 15 | 1042989597313 |
| 16 | 41305516996050613 |
| 17 | 174972977841043309 |
| 18 | 13300248193487978669 |
| 19 | 238663270054423392193 |
| 20 | 624828552868675407173 |
[3,5,23,37,97,157,1741,11933,50549,214129,560597, 16276621,180510493,398386576261,1042989597313, 41305516996050613,174972977841043309, 13300248193487978669,238663270054423392193, 624828552868675407173] |