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| n | a(n) |
|---|---|
| 1 | 64 |
| 2 | 353 |
| 3 | 451 |
| 4 | 4767 |
| 5 | 30814 |
| 6 | 150748 |
| 7 | 1262771 |
| 8 | 8560581 |
| 9 | 57300258 |
| 10 | 426035059 |
| 11 | 2967970785 |
| 12 | 21004206056 |
| 13 | 151233991720 |
| 14 | 1069609810758 |
| 15 | 7619801482207 |
| 16 | 54418606606899 |
| 17 | 386950658000779 |
| 18 | 2757469957283930 |
| 19 | 19654984493748915 |
[64,353,451,4767,30814,150748,1262771,8560581, 57300258,426035059,2967970785,21004206056, 151233991720,1069609810758,7619801482207, 54418606606899,386950658000779,2757469957283930, 19654984493748915] |