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| n | a(n) |
|---|---|
| 1 | 7 |
| 2 | 53 |
| 3 | 401 |
| 4 | 617 |
| 5 | 2713 |
| 6 | 4721 |
| 7 | 127217 |
| 8 | 203321 |
| 9 | 667577 |
| 10 | 1188857 |
| 11 | 3630521 |
| 12 | 8320057 |
| 13 | 11314657 |
| 14 | 12776761 |
| 15 | 14301073 |
| 16 | 24176441 |
| 17 | 37117433 |
| 18 | 50051873 |
| 19 | 56806201 |
| 20 | 73176001 |
| 21 | 82465553 |
| 22 | 107075321 |
| 23 | 176802361 |
| 24 | 234461753 |
| 25 | 324138041 |
| 26 | 324408401 |
[7,53,401,617,2713,4721,127217,203321,667577, 1188857,3630521,8320057,11314657,12776761, 14301073,24176441,37117433,50051873,56806201, 73176001,82465553,107075321,176802361,234461753, 324138041,324408401] |