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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 5 |
| 3 | 10 |
| 4 | 21 |
| 5 | 42 |
| 6 | 85 |
| 7 | 170 |
| 8 | 341 |
| 9 | 682 |
| 10 | 1365 |
| 11 | 2730 |
| 12 | 5461 |
| 13 | 10922 |
| 14 | 21589 |
| 15 | 43690 |
| 16 | 82005 |
| 17 | 179882 |
| 18 | 279637 |
| 19 | 719530 |
| 20 | 1048661 |
| 21 | 3145386 |
| 22 | 5244245 |
| 23 | 11532970 |
| 24 | 22021461 |
| 25 | 45021866 |
| 26 | 89130325 |
| 27 | 179042986 |
| 28 | 357565781 |
| 29 | 716176042 |
| 30 | 1431307349 |
| 31 | 2863659690 |
| 32 | 5726277717 |
| 33 | 11453574826 |
[1,2,5,10,21,42,85,170,341,682,1365,2730,5461, 10922,21589,43690,82005,179882,279637,719530, 1048661,3145386,5244245,11532970,22021461, 45021866,89130325,179042986,357565781,716176042, 1431307349,2863659690,5726277717,11453574826] |