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| n | a(n) |
|---|---|
| 1 | 129 |
| 2 | 2105 |
| 3 | 79090 |
| 4 | 2051450 |
| 5 | 45245148 |
| 6 | 1615637679 |
| 7 | 38249442962 |
| 8 | 955439201951 |
| 9 | 28422088797325 |
| 10 | 653249891295733 |
| 11 | 18365583086851745 |
| 12 | 495763997190145130 |
| 13 | 12117652634246661607 |
| 14 | 341107664098435880768 |
| 15 | 8779799870508201530267 |
[129,2105,79090,2051450,45245148,1615637679, 38249442962,955439201951,28422088797325, 653249891295733,18365583086851745, 495763997190145130,12117652634246661607, 341107664098435880768,8779799870508201530267] |