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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 3 |
| 3 | 14 |
| 4 | 100 |
| 5 | 979 |
| 6 | 12201 |
| 7 | 184820 |
| 8 | 3297456 |
| 9 | 67731333 |
| 10 | 1574304985 |
| 11 | 40851766526 |
| 12 | 1170684360924 |
| 13 | 36720042483591 |
| 14 | 1251308658130545 |
| 15 | 46034015337733480 |
| 16 | 1818399978159990976 |
| 17 | 76762718946972480009 |
[1,3,14,100,979,12201,184820,3297456,67731333, 1574304985,40851766526,1170684360924, 36720042483591,1251308658130545,46034015337733480, 1818399978159990976,76762718946972480009] |