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| n | a(n) |
|---|---|
| 1 | 13 |
| 2 | 223 |
| 3 | 3583 |
| 4 | 57331 |
| 5 | 916831 |
| 6 | 14669299 |
| 7 | 234708791 |
| 8 | 3744723967 |
| 9 | 59915583473 |
| 10 | 958649335571 |
| 11 | 14567880621971 |
| 12 | 65540984520023 |
| 13 | 1048655752320287 |
| 14 | 16778492037124607 |
[13,223,3583,57331,916831,14669299,234708791, 3744723967,59915583473,958649335571, 14567880621971,65540984520023,1048655752320287, 16778492037124607] |