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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 3 |
| 3 | 6 |
| 4 | 13 |
| 5 | 26 |
| 6 | 55 |
| 7 | 110 |
| 8 | 226 |
| 9 | 456 |
| 10 | 925 |
| 11 | 1862 |
| 12 | 3761 |
| 13 | 7562 |
| 14 | 15223 |
| 15 | 30586 |
| 16 | 61456 |
| 17 | 123362 |
| 18 | 247612 |
| 19 | 496694 |
| 20 | 996199 |
| 21 | 1997294 |
| 22 | 4003747 |
| 23 | 8023886 |
| 24 | 16078346 |
| 25 | 32212256 |
| 26 | 64528069 |
| 27 | 129246720 |
| 28 | 258849061 |
| 29 | 518358122 |
| 30 | 1037951557 |
| 31 | 2078209982 |
| 32 | 4160751616 |
[1,2,3,6,13,26,55,110,226,456,925,1862,3761,7562, 15223,30586,61456,123362,247612,496694,996199, 1997294,4003747,8023886,16078346,32212256, 64528069,129246720,258849061,518358122,1037951557, 2078209982,4160751616] |