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| n | a(n) |
|---|---|
| 0 | 3 |
| 1 | 2 |
| 2 | 7 |
| 3 | 47 |
| 4 | 307 |
| 5 | 3967 |
| 6 | 1999 |
| 7 | 4799 |
| 8 | 503 |
| 9 | 431 |
| 10 | 2351 |
| 11 | 720703 |
| 12 | 1727639 |
| 13 | 522127 |
| 14 | 344719 |
| 15 | 1406591 |
[3,2,7,47,307,3967,1999,4799,503,431,2351,720703, 1727639,522127,344719,1406591] |