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| n | a(n) |
|---|---|
| 1 | 16 |
| 2 | 170 |
| 3 | 2704 |
| 4 | 24298 |
| 5 | 359456 |
| 6 | 3022230 |
| 7 | 43248968 |
| 8 | 354823094 |
| 9 | 4990305568 |
| 10 | 40601871406 |
| 11 | 565368140984 |
| 12 | 4590068472250 |
| 13 | 63524027304400 |
| 14 | 515796560253008 |
| 15 | 7110064227756832 |
| 16 | 57780149815277172 |
| 17 | 794366012177843040 |
[16,170,2704,24298,359456,3022230,43248968, 354823094,4990305568,40601871406,565368140984, 4590068472250,63524027304400,515796560253008, 7110064227756832,57780149815277172, 794366012177843040] |