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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 0 |
| 2 | 1 |
| 3 | 1 |
| 4 | 2 |
| 5 | 3 |
| 6 | 4 |
| 7 | 8 |
| 8 | 11 |
| 9 | 19 |
| 10 | 28 |
| 11 | 47 |
| 12 | 72 |
| 13 | 116 |
| 14 | 182 |
| 15 | 289 |
| 16 | 460 |
| 17 | 724 |
| 18 | 1153 |
| 19 | 1820 |
| 20 | 2891 |
| 21 | 4572 |
| 22 | 7249 |
| 23 | 11482 |
| 24 | 18190 |
| 25 | 28821 |
| 26 | 45651 |
| 27 | 72338 |
| 28 | 114582 |
| 29 | 181549 |
| 30 | 287597 |
| 31 | 455647 |
| 32 | 721849 |
| 33 | 1143590 |
| 34 | 1811753 |
| 35 | 2870247 |
| 36 | 4547245 |
| 37 | 7203933 |
| 38 | 11412922 |
| 39 | 18080907 |
| 40 | 28644799 |
| 41 | 45380602 |
| 42 | 71894401 |
| 43 | 113899027 |
| 44 | 180444897 |
| 45 | 285870668 |
[1,0,1,1,2,3,4,8,11,19,28,47,72,116,182,289,460, 724,1153,1820,2891,4572,7249,11482,18190,28821, 45651,72338,114582,181549,287597,455647,721849, 1143590,1811753,2870247,4547245,7203933,11412922, 18080907,28644799,45380602,71894401,113899027, 180444897,285870668] |