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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 4 |
| 3 | 8 |
| 4 | 13 |
| 5 | 22 |
| 6 | 39 |
| 7 | 70 |
| 8 | 124 |
| 9 | 217 |
| 10 | 381 |
| 11 | 672 |
| 12 | 1186 |
| 13 | 2090 |
| 14 | 3680 |
| 15 | 6482 |
| 16 | 11422 |
| 17 | 20127 |
| 18 | 35461 |
| 19 | 62474 |
| 20 | 110069 |
| 21 | 193930 |
| 22 | 341683 |
| 23 | 601999 |
| 24 | 1060637 |
| 25 | 1868700 |
| 26 | 3292407 |
| 27 | 5800790 |
| 28 | 10220220 |
| 29 | 18006665 |
| 30 | 31725356 |
| 31 | 55895881 |
| 32 | 98481140 |
| 33 | 173510709 |
| 34 | 305702860 |
| 35 | 538607921 |
| 36 | 948955781 |
[1,2,4,8,13,22,39,70,124,217,381,672,1186,2090, 3680,6482,11422,20127,35461,62474,110069,193930, 341683,601999,1060637,1868700,3292407,5800790, 10220220,18006665,31725356,55895881,98481140, 173510709,305702860,538607921,948955781] |