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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 19 |
| 3 | 721 |
| 4 | 49251 |
| 5 | 5370751 |
| 6 | 859748023 |
| 7 | 190320431953 |
| 8 | 55743765411043 |
| 9 | 20884452115700251 |
| 10 | 9745388924112505269 |
| 11 | 5543574376457462884111 |
| 12 | 3776677001062829977964007 |
| 13 | 3036161801705682492174749691 |
| 14 | 2844274879825369072829081331519 |
[1,1,19,721,49251,5370751,859748023,190320431953, 55743765411043,20884452115700251, 9745388924112505269,5543574376457462884111, 3776677001062829977964007, 3036161801705682492174749691, 2844274879825369072829081331519] |