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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 10 |
| 3 | 184 |
| 4 | 5002 |
| 5 | 180946 |
| 6 | 8194876 |
| 7 | 446499040 |
| 8 | 28458981244 |
| 9 | 2078421338332 |
| 10 | 171172926117496 |
| 11 | 15697577655564256 |
| 12 | 1586608160726540920 |
| 13 | 175250235244856579224 |
| 14 | 21003839031922634413072 |
| 15 | 2714857174269749946558976 |
| 16 | 376464923925271242105926416 |
| 17 | 55750171957389243732994627600 |
[1,1,10,184,5002,180946,8194876,446499040, 28458981244,2078421338332,171172926117496, 15697577655564256,1586608160726540920, 175250235244856579224,21003839031922634413072, 2714857174269749946558976, 376464923925271242105926416, 55750171957389243732994627600] |