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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 0 |
| 2 | 0 |
| 3 | 0 |
| 4 | 0 |
| 5 | 0 |
| 6 | 0 |
| 7 | 1 |
| 8 | 2 |
| 9 | 3 |
| 10 | 5 |
| 11 | 8 |
| 12 | 15 |
| 13 | 25 |
| 14 | 40 |
| 15 | 67 |
| 16 | 107 |
| 17 | 175 |
| 18 | 285 |
| 19 | 463 |
| 20 | 749 |
| 21 | 1214 |
| 22 | 1966 |
| 23 | 3181 |
| 24 | 5149 |
| 25 | 8334 |
| 26 | 13486 |
| 27 | 21821 |
| 28 | 35310 |
| 29 | 57134 |
| 30 | 92447 |
| 31 | 149582 |
| 32 | 242031 |
| 33 | 391616 |
| 34 | 633650 |
| 35 | 1025270 |
| 36 | 1658925 |
| 37 | 2684198 |
| 38 | 4343125 |
| 39 | 7027327 |
| 40 | 11370459 |
| 41 | 18397790 |
| 42 | 29768250 |
[0,0,0,0,0,0,0,1,2,3,5,8,15,25,40,67,107,175,285, 463,749,1214,1966,3181,5149,8334,13486,21821, 35310,57134,92447,149582,242031,391616,633650, 1025270,1658925,2684198,4343125,7027327,11370459, 18397790,29768250] |