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| n | a(n) |
|---|---|
| 1 | 72 |
| 2 | 1127 |
| 3 | 18590 |
| 4 | 268289 |
| 5 | 3761534 |
| 6 | 50865307 |
| 7 | 673690710 |
| 8 | 8768989835 |
| 9 | 112658396453 |
| 10 | 1431998499913 |
| 11 | 18044145807959 |
| 12 | 225714076389625 |
| 13 | 2806025783464923 |
| 14 | 34698719581599414 |
| 15 | 427098528675334433 |
| 16 | 5235801241750340793 |
[72,1127,18590,268289,3761534,50865307,673690710, 8768989835,112658396453,1431998499913, 18044145807959,225714076389625,2806025783464923, 34698719581599414,427098528675334433, 5235801241750340793] |