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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 1 |
| 3 | 2 |
| 4 | 6 |
| 5 | 12 |
| 6 | 23 |
| 7 | 44 |
| 8 | 82 |
| 9 | 149 |
| 10 | 267 |
| 11 | 475 |
| 12 | 841 |
| 13 | 1484 |
| 14 | 2613 |
| 15 | 4595 |
| 16 | 8074 |
| 17 | 14180 |
| 18 | 24896 |
| 19 | 43702 |
| 20 | 76705 |
| 21 | 134622 |
| 22 | 236260 |
| 23 | 414623 |
| 24 | 727629 |
| 25 | 1276917 |
| 26 | 2240851 |
| 27 | 3932438 |
| 28 | 6900967 |
| 29 | 12110373 |
| 30 | 21252244 |
| 31 | 37295110 |
| 32 | 65448378 |
| 33 | 114853920 |
| 34 | 201554603 |
| 35 | 353703696 |
| 36 | 620706742 |
[1,1,1,2,6,12,23,44,82,149,267,475,841,1484,2613, 4595,8074,14180,24896,43702,76705,134622,236260, 414623,727629,1276917,2240851,3932438,6900967, 12110373,21252244,37295110,65448378,114853920, 201554603,353703696,620706742] |