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| n | a(n) |
|---|---|
| 5 | 1 |
| 6 | 125 |
| 7 | 11935 |
| 8 | 1054446 |
| 9 | 90883409 |
| 10 | 7785919355 |
| 11 | 667846094180 |
| 12 | 57528246520478 |
| 13 | 4982376224847449 |
| 14 | 434013966175033628 |
| 15 | 38025865334904838663 |
| 16 | 3350276790194497909856 |
| 17 | 296749825639022477348788 |
| 18 | 26416568025494093610125066 |
| 19 | 2362674123675423339031313673 |
[1,125,11935,1054446,90883409,7785919355, 667846094180,57528246520478,4982376224847449, 434013966175033628,38025865334904838663, 3350276790194497909856,296749825639022477348788, 26416568025494093610125066, 2362674123675423339031313673] |