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| n | a(n) |
|---|---|
| 1 | 13 |
| 2 | 241 |
| 3 | 3969 |
| 4 | 63309 |
| 5 | 1012165 |
| 6 | 16187585 |
| 7 | 258892017 |
| 8 | 4140512637 |
| 9 | 66219989569 |
| 10 | 1059068692053 |
| 11 | 16937884056129 |
| 12 | 270890753853217 |
| 13 | 4332406590925081 |
| 14 | 69288990493328445 |
| 15 | 1108151809585322513 |
| 16 | 17722879556252110069 |
[13,241,3969,63309,1012165,16187585,258892017, 4140512637,66219989569,1059068692053, 16937884056129,270890753853217,4332406590925081, 69288990493328445,1108151809585322513, 17722879556252110069] |