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| n | a(n) |
|---|---|
| 1 | 5 |
| 2 | 117 |
| 3 | 1267 |
| 4 | 13894 |
| 5 | 262258 |
| 6 | 3699605 |
| 7 | 50337359 |
| 8 | 795864688 |
| 9 | 11746148349 |
| 10 | 169677283808 |
| 11 | 2554251942699 |
| 12 | 37889834001861 |
| 13 | 557236694392506 |
| 14 | 8286488663335210 |
| 15 | 122880923068301625 |
| 16 | 1816766865705440009 |
[5,117,1267,13894,262258,3699605,50337359, 795864688,11746148349,169677283808,2554251942699, 37889834001861,557236694392506,8286488663335210, 122880923068301625,1816766865705440009] |