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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 3 |
| 3 | 32 |
| 4 | 813 |
| 5 | 35091 |
| 6 | 2239211 |
| 7 | 196853182 |
| 8 | 22793279166 |
| 9 | 3364540700239 |
| 10 | 617230596484085 |
| 11 | 137845145575722714 |
| 12 | 36837526276927643835 |
| 13 | 11610208860469854424443 |
| 14 | 4262404755708966974829048 |
| 15 | 1803378442987799820993028822 |
[1,1,3,32,813,35091,2239211,196853182,22793279166, 3364540700239,617230596484085,137845145575722714, 36837526276927643835,11610208860469854424443, 4262404755708966974829048, 1803378442987799820993028822] |