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| n | a(n) |
|---|---|
| 1 | 5 |
| 2 | 110 |
| 3 | 3876 |
| 4 | 164450 |
| 5 | 7713420 |
| 6 | 385300240 |
| 7 | 20096692635 |
| 8 | 1081790956890 |
| 9 | 59647783837425 |
| 10 | 3351648108957720 |
| 11 | 191230475831922200 |
| 12 | 11049110585626417200 |
| 13 | 645189590847792998601 |
| 14 | 38014810319396501088720 |
| 15 | 2257261555792984515847380 |
| 16 | 134939208350635886836436490 |
[5,110,3876,164450,7713420,385300240,20096692635, 1081790956890,59647783837425,3351648108957720, 191230475831922200,11049110585626417200, 645189590847792998601,38014810319396501088720, 2257261555792984515847380, 134939208350635886836436490] |