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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 91 |
| 3 | 1041 |
| 4 | 29412 |
| 5 | 574706 |
| 6 | 13076919 |
| 7 | 280280821 |
| 8 | 6157362467 |
| 9 | 133971367251 |
| 10 | 2926556131807 |
| 11 | 63829507756107 |
| 12 | 1393042238694910 |
| 13 | 30394642476262010 |
| 14 | 663246016374693512 |
| 15 | 14472196608372584944 |
| 16 | 315792262364985554100 |
[1,91,1041,29412,574706,13076919,280280821, 6157362467,133971367251,2926556131807, 63829507756107,1393042238694910,30394642476262010, 663246016374693512,14472196608372584944, 315792262364985554100] |