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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | 2 |
| 3 | 3 |
| 4 | 5 |
| 5 | 10 |
| 6 | 21 |
| 7 | 42 |
| 8 | 78 |
| 9 | 135 |
| 10 | 220 |
| 11 | 341 |
| 12 | 507 |
| 13 | 728 |
| 14 | 1015 |
| 15 | 1380 |
| 16 | 1836 |
| 17 | 2397 |
| 18 | 3078 |
| 19 | 3895 |
| 20 | 4865 |
| 21 | 6006 |
| 22 | 7337 |
| 23 | 8878 |
| 24 | 10650 |
| 25 | 12675 |
| 26 | 14976 |
| 27 | 17577 |
| 28 | 20503 |
| 29 | 23780 |
| 30 | 27435 |
| 31 | 31496 |
| 32 | 35992 |
| 33 | 40953 |
| 34 | 46410 |
| 35 | 52395 |
| 36 | 58941 |
| 37 | 66082 |
| 38 | 73853 |
| 39 | 82290 |
| 40 | 91430 |
| 41 | 101311 |
[0,1,2,3,5,10,21,42,78,135,220,341,507,728,1015, 1380,1836,2397,3078,3895,4865,6006,7337,8878, 10650,12675,14976,17577,20503,23780,27435,31496, 35992,40953,46410,52395,58941,66082,73853,82290, 91430,101311] |