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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 2 |
| 3 | 2 |
| 4 | 4 |
| 5 | 8 |
| 6 | 13 |
| 7 | 25 |
| 8 | 44 |
| 9 | 83 |
| 10 | 152 |
| 11 | 286 |
| 12 | 538 |
| 13 | 1020 |
| 14 | 1942 |
| 15 | 3725 |
| 16 | 7145 |
| 17 | 13781 |
| 18 | 26627 |
| 19 | 51572 |
| 20 | 100099 |
| 21 | 194633 |
| 22 | 379037 |
| 23 | 739250 |
| 24 | 1443573 |
| 25 | 2822186 |
| 26 | 5522889 |
| 27 | 10818417 |
| 28 | 21209278 |
| 29 | 41613288 |
| 30 | 81705516 |
| 31 | 160532194 |
| 32 | 315604479 |
| 33 | 620834222 |
| 34 | 1221918604 |
| 35 | 2406183020 |
| 36 | 4740461247 |
[1,1,2,2,4,8,13,25,44,83,152,286,538,1020,1942, 3725,7145,13781,26627,51572,100099,194633,379037, 739250,1443573,2822186,5522889,10818417,21209278, 41613288,81705516,160532194,315604479,620834222, 1221918604,2406183020,4740461247] |