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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 10 |
| 3 | 189 |
| 4 | 5476 |
| 5 | 215145 |
| 6 | 10701006 |
| 7 | 644909503 |
| 8 | 45687408712 |
| 9 | 3721382812305 |
| 10 | 342689189598010 |
| 11 | 35206864089944151 |
| 12 | 3992473080042706524 |
| 13 | 495361299387667990537 |
| 14 | 66752437447119717428422 |
| 15 | 9708649781691227748131535 |
| 16 | 1515863453268825963300368656 |
[1,1,10,189,5476,215145,10701006,644909503, 45687408712,3721382812305,342689189598010, 35206864089944151,3992473080042706524, 495361299387667990537,66752437447119717428422, 9708649781691227748131535, 1515863453268825963300368656] |