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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 3 |
| 4 | 11 |
| 5 | 17 |
| 6 | 70 |
| 7 | 108 |
| 8 | 483 |
| 9 | 739 |
| 10 | 3426 |
| 11 | 5216 |
| 12 | 24476 |
| 13 | 37233 |
| 14 | 176887 |
| 15 | 268945 |
| 16 | 1289725 |
| 17 | 1960265 |
| 18 | 9470869 |
| 19 | 14390851 |
| 20 | 69941272 |
| 21 | 106252224 |
| 22 | 518879732 |
| 23 | 788139368 |
| 24 | 3864186695 |
| 25 | 5868707734 |
| 26 | 28870387411 |
| 27 | 43842625518 |
| 28 | 216296687601 |
| 29 | 328444289911 |
[1,2,3,11,17,70,108,483,739,3426,5216,24476,37233, 176887,268945,1289725,1960265,9470869,14390851, 69941272,106252224,518879732,788139368,3864186695, 5868707734,28870387411,43842625518,216296687601, 328444289911] |