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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 1 |
| 3 | 2 |
| 4 | 4 |
| 5 | 8 |
| 6 | 15 |
| 7 | 29 |
| 8 | 52 |
| 9 | 95 |
| 10 | 168 |
| 11 | 297 |
| 12 | 513 |
| 13 | 887 |
| 14 | 1504 |
| 15 | 2543 |
| 16 | 4247 |
| 17 | 7054 |
| 18 | 11596 |
| 19 | 18964 |
| 20 | 30732 |
| 21 | 49529 |
| 22 | 79210 |
| 23 | 125944 |
| 24 | 198861 |
| 25 | 312224 |
| 26 | 487021 |
| 27 | 755435 |
| 28 | 1164641 |
| 29 | 1785574 |
| 30 | 2721591 |
| 31 | 4125745 |
| 32 | 6219019 |
| 33 | 9324141 |
| 34 | 13902921 |
| 35 | 20620505 |
| 36 | 30419742 |
[1,1,1,2,4,8,15,29,52,95,168,297,513,887,1504, 2543,4247,7054,11596,18964,30732,49529,79210, 125944,198861,312224,487021,755435,1164641, 1785574,2721591,4125745,6219019,9324141,13902921, 20620505,30419742] |