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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 908 |
| 3 | 29339 |
| 4 | 2403703 |
| 5 | 186574154 |
| 6 | 14920072888 |
| 7 | 1197129513001 |
| 8 | 96317261216226 |
| 9 | 7756014658872472 |
| 10 | 624809763949119909 |
| 11 | 50341640351921902734 |
| 12 | 4056352364979422842728 |
| 13 | 326855659057553202836776 |
[1,908,29339,2403703,186574154,14920072888, 1197129513001,96317261216226,7756014658872472, 624809763949119909,50341640351921902734, 4056352364979422842728,326855659057553202836776] |