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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 3 |
| 3 | 4 |
| 4 | 5 |
| 5 | 11 |
| 6 | 37 |
| 7 | 113 |
| 8 | 289 |
| 9 | 640 |
| 10 | 1280 |
| 11 | 2412 |
| 12 | 4468 |
| 13 | 8429 |
| 14 | 16460 |
| 15 | 33062 |
| 16 | 67084 |
| 17 | 135283 |
| 18 | 268929 |
| 19 | 526680 |
| 20 | 1020344 |
| 21 | 1966429 |
| 22 | 3787730 |
| 23 | 7309799 |
| 24 | 14135460 |
| 25 | 27353769 |
| 26 | 52882135 |
| 27 | 102017609 |
| 28 | 196309933 |
| 29 | 376896805 |
| 30 | 722393936 |
| 31 | 1383122752 |
| 32 | 2646430148 |
| 33 | 5061050284 |
[1,2,3,4,5,11,37,113,289,640,1280,2412,4468,8429, 16460,33062,67084,135283,268929,526680,1020344, 1966429,3787730,7309799,14135460,27353769, 52882135,102017609,196309933,376896805,722393936, 1383122752,2646430148,5061050284] |