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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 0 |
| 2 | 0 |
| 3 | 0 |
| 4 | 0 |
| 5 | 0 |
| 6 | 1 |
| 7 | 2 |
| 8 | 4 |
| 9 | 8 |
| 10 | 13 |
| 11 | 21 |
| 12 | 32 |
| 13 | 48 |
| 14 | 67 |
| 15 | 99 |
| 16 | 133 |
| 17 | 185 |
| 18 | 245 |
| 19 | 333 |
| 20 | 432 |
| 21 | 574 |
| 22 | 732 |
| 23 | 957 |
| 24 | 1208 |
| 25 | 1554 |
| 26 | 1941 |
| 27 | 2468 |
| 28 | 3060 |
| 29 | 3844 |
| 30 | 4731 |
| 31 | 5893 |
| 32 | 7204 |
| 33 | 8898 |
| 34 | 10816 |
| 35 | 13268 |
| 36 | 16043 |
| 37 | 19546 |
| 38 | 23523 |
| 39 | 28497 |
| 40 | 34150 |
| 41 | 41147 |
| 42 | 49106 |
| 43 | 58892 |
| 44 | 70020 |
| 45 | 83597 |
| 46 | 99047 |
| 47 | 117778 |
| 48 | 139087 |
[0,0,0,0,0,0,1,2,4,8,13,21,32,48,67,99,133,185, 245,333,432,574,732,957,1208,1554,1941,2468,3060, 3844,4731,5893,7204,8898,10816,13268,16043,19546, 23523,28497,34150,41147,49106,58892,70020,83597, 99047,117778,139087] |