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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 4 |
| 4 | 7 |
| 5 | 12 |
| 6 | 26 |
| 7 | 44 |
| 8 | 92 |
| 9 | 175 |
| 10 | 354 |
| 11 | 684 |
| 12 | 1396 |
| 13 | 2732 |
| 14 | 5506 |
| 15 | 10938 |
| 16 | 21937 |
| 17 | 43692 |
| 18 | 87578 |
| 19 | 174764 |
| 20 | 349884 |
| 21 | 699098 |
| 22 | 1398786 |
| 23 | 2796204 |
| 24 | 5593886 |
| 25 | 11184823 |
| 26 | 22372354 |
| 27 | 44739418 |
| 28 | 89483996 |
| 29 | 178956972 |
| 30 | 357925242 |
| 31 | 715827884 |
| 32 | 1431677702 |
| 33 | 2863312218 |
| 34 | 5726666754 |
| 35 | 11453246178 |
| 36 | 22906581193 |
[1,2,4,7,12,26,44,92,175,354,684,1396,2732,5506, 10938,21937,43692,87578,174764,349884,699098, 1398786,2796204,5593886,11184823,22372354, 44739418,89483996,178956972,357925242,715827884, 1431677702,2863312218,5726666754,11453246178, 22906581193] |