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| n | a(n) |
|---|---|
| 1 | 603 |
| 2 | 13401 |
| 3 | 297873 |
| 4 | 6621219 |
| 5 | 147178899 |
| 6 | 3271547025 |
| 7 | 72721157625 |
| 8 | 1616472795339 |
| 9 | 35931555318411 |
| 10 | 798699904707465 |
| 11 | 17753796965556513 |
| 12 | 394637967071813043 |
| 13 | 8772158730705164739 |
| 14 | 194990789577739653441 |
| 15 | 4334327408721425197833 |
[603,13401,297873,6621219,147178899,3271547025, 72721157625,1616472795339,35931555318411, 798699904707465,17753796965556513, 394637967071813043,8772158730705164739, 194990789577739653441,4334327408721425197833] |