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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 5 |
| 2 | 43 |
| 3 | 416 |
| 4 | 4239 |
| 5 | 44485 |
| 6 | 475780 |
| 7 | 5156548 |
| 8 | 56437231 |
| 9 | 622361423 |
| 10 | 6904185523 |
| 11 | 76964141600 |
| 12 | 861408728964 |
| 13 | 9673849095708 |
| 14 | 108954068684616 |
| 15 | 1230185577016156 |
| 16 | 13920106205444335 |
| 17 | 157814104889538739 |
[1,5,43,416,4239,44485,475780,5156548,56437231, 622361423,6904185523,76964141600,861408728964, 9673849095708,108954068684616,1230185577016156, 13920106205444335,157814104889538739] |