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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 9 |
| 3 | 67 |
| 4 | 437 |
| 5 | 441 |
| 6 | 2615 |
| 7 | 100349 |
| 8 | 100353 |
| 9 | 100359 |
| 10 | 637197 |
| 11 | 637305 |
| 12 | 27066969 |
| 13 | 27067049 |
| 14 | 27067101 |
| 15 | 27067113 |
| 16 | 27067115 |
| 17 | 179992839 |
| 18 | 179993001 |
| 19 | 55762149071 |
| 20 | 382465573491 |
[1,9,67,437,441,2615,100349,100353,100359,637197, 637305,27066969,27067049,27067101,27067113, 27067115,179992839,179993001,55762149071, 382465573491] |