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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 2 |
| 5 | 3 |
| 6 | 7 |
| 7 | 43 |
| 8 | 452 |
| 9 | 45351 |
| 10 | 125920291 |
| 11 | 60027819184831 |
| 12 | 758397193749171922281611 |
| 13 | 126403219004744354228963383975713263866432 |
| 14 | 45699526286117471520994956894648733172150425791690122432447239675853643 |
[1,1,1,1,2,3,7,43,452,45351,125920291, 60027819184831,758397193749171922281611, 126403219004744354228963383975713263866432, 45699526286117471520994956894648733172150425791690\ 122432447239675853643] |