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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 5 |
| 3 | 10 |
| 4 | 20 |
| 5 | 36 |
| 6 | 65 |
| 7 | 109 |
| 8 | 182 |
| 9 | 292 |
| 10 | 463 |
| 11 | 714 |
| 12 | 1091 |
| 13 | 1631 |
| 14 | 2416 |
| 15 | 3523 |
| 16 | 5091 |
| 17 | 7264 |
| 18 | 10284 |
| 19 | 14405 |
| 20 | 20035 |
| 21 | 27621 |
| 22 | 37831 |
| 23 | 51425 |
| 24 | 69497 |
| 25 | 93299 |
| 26 | 124588 |
| 27 | 165408 |
| 28 | 218533 |
| 29 | 287231 |
| 30 | 375851 |
| 31 | 489525 |
| 32 | 634980 |
| 33 | 820195 |
| 34 | 1055444 |
| 35 | 1352965 |
| 36 | 1728326 |
| 37 | 2200060 |
| 38 | 2791516 |
| 39 | 3530513 |
[1,2,5,10,20,36,65,109,182,292,463,714,1091,1631, 2416,3523,5091,7264,10284,14405,20035,27621,37831, 51425,69497,93299,124588,165408,218533,287231, 375851,489525,634980,820195,1055444,1352965, 1728326,2200060,2791516,3530513] |