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| n | a(n) |
|---|---|
| 1 | 17709 |
| 2 | 231372 |
| 3 | 767176 |
| 4 | 1808374 |
| 5 | 5219625 |
| 6 | 17585706 |
| 7 | 59046724 |
| 8 | 209788816 |
| 9 | 715958046 |
| 10 | 2479308557 |
| 11 | 9956085785 |
| 12 | 36534703306 |
| 13 | 134720021233 |
| 14 | 603603095063 |
| 15 | 2333291306912 |
| 16 | 8984713129479 |
| 17 | 43067974596056 |
| 18 | 171022136230496 |
[17709,231372,767176,1808374,5219625,17585706, 59046724,209788816,715958046,2479308557, 9956085785,36534703306,134720021233,603603095063, 2333291306912,8984713129479,43067974596056, 171022136230496] |