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| n | a(n) |
|---|---|
| 1 | 64 |
| 2 | 2785 |
| 3 | 4754 |
| 4 | 12442 |
| 5 | 69537 |
| 6 | 518736 |
| 7 | 2342685 |
| 8 | 10963076 |
| 9 | 58365289 |
| 10 | 307637792 |
| 11 | 1559714448 |
| 12 | 8017915598 |
| 13 | 41579079715 |
| 14 | 214421759223 |
| 15 | 1104296541035 |
| 16 | 5698818950760 |
| 17 | 29408079178051 |
| 18 | 151670498894737 |
| 19 | 782355792604657 |
[64,2785,4754,12442,69537,518736,2342685,10963076, 58365289,307637792,1559714448,8017915598, 41579079715,214421759223,1104296541035, 5698818950760,29408079178051,151670498894737, 782355792604657] |