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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 7 |
| 4 | 11 |
| 5 | 27 |
| 6 | 44 |
| 7 | 96 |
| 8 | 155 |
| 9 | 315 |
| 10 | 510 |
| 11 | 994 |
| 12 | 1608 |
| 13 | 3043 |
| 14 | 4924 |
| 15 | 9123 |
| 16 | 14761 |
| 17 | 26909 |
| 18 | 43540 |
| 19 | 78370 |
| 20 | 126805 |
| 21 | 225911 |
| 22 | 365532 |
| 23 | 645732 |
| 24 | 1044816 |
| 25 | 1832677 |
| 26 | 2965334 |
| 27 | 5170111 |
| 28 | 8365415 |
[1,2,7,11,27,44,96,155,315,510,994,1608,3043,4924, 9123,14761,26909,43540,78370,126805,225911,365532, 645732,1044816,1832677,2965334,5170111,8365415] |