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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 10 |
| 3 | 159 |
| 4 | 3496 |
| 5 | 173225 |
| 6 | 15680736 |
| 7 | 1618295455 |
| 8 | 169456569472 |
| 9 | 17962132149009 |
| 10 | 2673715009888000 |
| 11 | 652752279443748671 |
| 12 | 185425990150444922880 |
| 13 | 50400836024570702513401 |
| 14 | 12815973354809222836596736 |
| 15 | 3862679850655546273674429375 |
| 16 | 1722827488179450551983866413056 |
[1,1,10,159,3496,173225,15680736,1618295455, 169456569472,17962132149009,2673715009888000, 652752279443748671,185425990150444922880, 50400836024570702513401, 12815973354809222836596736, 3862679850655546273674429375, 1722827488179450551983866413056] |