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| n | a(n) |
|---|---|
| 3 | 1 |
| 4 | 1 |
| 5 | 2 |
| 6 | 3 |
| 7 | 6 |
| 8 | 11 |
| 9 | 21 |
| 10 | 39 |
| 11 | 75 |
| 12 | 141 |
| 13 | 273 |
| 14 | 519 |
| 15 | 1009 |
| 16 | 1933 |
| 17 | 3770 |
| 18 | 7263 |
| 19 | 14202 |
| 20 | 27479 |
| 21 | 53846 |
| 22 | 104543 |
| 23 | 205216 |
| 24 | 399543 |
| 25 | 785460 |
| 26 | 1532779 |
| 27 | 3017106 |
| 28 | 5899167 |
| 29 | 11624580 |
| 30 | 22766607 |
| 31 | 44905518 |
| 32 | 88073091 |
| 33 | 173863965 |
| 34 | 341425551 |
| 35 | 674506059 |
| 36 | 1326019653 |
| 37 | 2621371005 |
| 38 | 5158412943 |
| 39 | 10203609597 |
[1,1,2,3,6,11,21,39,75,141,273,519,1009,1933,3770, 7263,14202,27479,53846,104543,205216,399543, 785460,1532779,3017106,5899167,11624580,22766607, 44905518,88073091,173863965,341425551,674506059, 1326019653,2621371005,5158412943,10203609597] |