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| n | a(n) |
|---|---|
| 1 | 2571 |
| 2 | 3345 |
| 3 | 4911 |
| 4 | 8097 |
| 5 | 14631 |
| 6 | 28185 |
| 7 | 56751 |
| 8 | 118257 |
| 9 | 254391 |
| 10 | 566025 |
| 11 | 1307391 |
| 12 | 3144417 |
| 13 | 7881351 |
| 14 | 20543865 |
| 15 | 55434831 |
| 16 | 153914577 |
| 17 | 436967511 |
| 18 | 1261353705 |
| 19 | 3684967071 |
| 20 | 10856716737 |
| 21 | 32173784871 |
| 22 | 95728627545 |
| 23 | 285600432111 |
[2571,3345,4911,8097,14631,28185,56751,118257, 254391,566025,1307391,3144417,7881351,20543865, 55434831,153914577,436967511,1261353705, 3684967071,10856716737,32173784871,95728627545, 285600432111] |