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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 5 |
| 3 | 13 |
| 4 | 29 |
| 5 | 97 |
| 6 | 139 |
| 7 | 353 |
| 8 | 4889 |
| 9 | 72353 |
| 10 | 353815699 |
| 11 | 42065402653 |
| 12 | 84998999651 |
| 13 | 102769130749 |
| 14 | 15622297824266188673 |
| 15 | 28101527071305611527 |
| 16 | 20896779938941631284493075599148668795944697935466419104293 |
| 17 | 105312291668560568089831550410013687058921146068446092937783402353 |
[2,5,13,29,97,139,353,4889,72353,353815699, 42065402653,84998999651,102769130749, 15622297824266188673,28101527071305611527, 20896779938941631284493075599148668795944697935466\ 419104293, 10531229166856056808983155041001368705892114606844\ 6092937783402353] |