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| n | a(n) |
|---|---|
| 1 | 512 |
| 2 | 13349 |
| 3 | 319819 |
| 4 | 2782301 |
| 5 | 11818550 |
| 6 | 27007866 |
| 7 | 56306098 |
| 8 | 109071370 |
| 9 | 212009150 |
| 10 | 385935286 |
| 11 | 699340102 |
| 12 | 1275550414 |
| 13 | 2347054062 |
| 14 | 4286793366 |
| 15 | 7769996982 |
| 16 | 14567381806 |
| 17 | 27588495230 |
| 18 | 52263269822 |
| 19 | 98037946714 |
| 20 | 189435993774 |
[512,13349,319819,2782301,11818550,27007866, 56306098,109071370,212009150,385935286,699340102, 1275550414,2347054062,4286793366,7769996982, 14567381806,27588495230,52263269822,98037946714, 189435993774] |