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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 16 |
| 2 | 187 |
| 3 | 1942 |
| 4 | 19033 |
| 5 | 180628 |
| 6 | 1681639 |
| 7 | 15470674 |
| 8 | 141251605 |
| 9 | 1283357680 |
| 10 | 11622778531 |
| 11 | 105040363246 |
| 12 | 947975408017 |
| 13 | 8547451504972 |
| 14 | 77021100541663 |
| 15 | 693754126856458 |
| 16 | 6247172473597069 |
| 17 | 56244864253707304 |
[1,16,187,1942,19033,180628,1681639,15470674, 141251605,1283357680,11622778531,105040363246, 947975408017,8547451504972,77021100541663, 693754126856458,6247172473597069, 56244864253707304] |