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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 1 |
| 3 | 2 |
| 4 | 4 |
| 5 | 7 |
| 6 | 12 |
| 7 | 20 |
| 8 | 34 |
| 9 | 59 |
| 10 | 102 |
| 11 | 175 |
| 12 | 300 |
| 13 | 515 |
| 14 | 885 |
| 15 | 1521 |
| 16 | 2613 |
| 17 | 4488 |
| 18 | 7709 |
| 19 | 13243 |
| 20 | 22750 |
| 21 | 39081 |
| 22 | 67134 |
| 23 | 115324 |
| 24 | 198107 |
| 25 | 340315 |
| 26 | 584604 |
| 27 | 1004250 |
| 28 | 1725130 |
| 29 | 2963480 |
| 30 | 5090756 |
| 31 | 8745055 |
| 32 | 15022519 |
| 33 | 25806135 |
| 34 | 44330556 |
| 35 | 76152366 |
| 36 | 130816831 |
[1,1,1,2,4,7,12,20,34,59,102,175,300,515,885,1521, 2613,4488,7709,13243,22750,39081,67134,115324, 198107,340315,584604,1004250,1725130,2963480, 5090756,8745055,15022519,25806135,44330556, 76152366,130816831] |