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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 1 |
| 5 | 1 |
| 6 | 1 |
| 7 | 1 |
| 8 | 2 |
| 9 | 6 |
| 10 | 16 |
| 11 | 36 |
| 12 | 71 |
| 13 | 127 |
| 14 | 211 |
| 15 | 331 |
| 16 | 497 |
| 17 | 725 |
| 18 | 1047 |
| 19 | 1531 |
| 20 | 2316 |
| 21 | 3668 |
| 22 | 6064 |
| 23 | 10312 |
| 24 | 17717 |
| 25 | 30309 |
| 26 | 51165 |
| 27 | 84893 |
| 28 | 138417 |
| 29 | 222329 |
| 30 | 353285 |
| 31 | 558253 |
| 32 | 881918 |
| 33 | 1399274 |
| 34 | 2236480 |
| 35 | 3604588 |
| 36 | 5853067 |
| 37 | 9553715 |
| 38 | 15631615 |
| 39 | 25570103 |
| 40 | 41734433 |
| 41 | 67889133 |
| 42 | 110035211 |
| 43 | 177778263 |
[1,1,1,1,1,1,1,1,2,6,16,36,71,127,211,331,497,725, 1047,1531,2316,3668,6064,10312,17717,30309,51165, 84893,138417,222329,353285,558253,881918,1399274, 2236480,3604588,5853067,9553715,15631615,25570103, 41734433,67889133,110035211,177778263] |