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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 | 24854 |
| 13 | 37674 |
| 14 | 182772 |
| 15 | 276148 |
| 16 | 1356007 |
| 17 | 2044208 |
| 18 | 10131559 |
| 19 | 15248045 |
| 20 | 76127580 |
| 21 | 114423396 |
| 22 | 574672535 |
| 23 | 862855785 |
| 24 | 4354884748 |
| 25 | 6533103057 |
| 26 | 33109526739 |
| 27 | 49634203231 |
| 28 | 252432788850 |
| 29 | 378186234038 |
[1,2,3,11,17,70,108,483,739,3426,5216,24854,37674, 182772,276148,1356007,2044208,10131559,15248045, 76127580,114423396,574672535,862855785,4354884748, 6533103057,33109526739,49634203231,252432788850, 378186234038] |