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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 0 |
| 2 | 1 |
| 3 | 2 |
| 4 | 3 |
| 5 | 4 |
| 6 | 6 |
| 7 | 12 |
| 8 | 19 |
| 9 | 30 |
| 10 | 40 |
| 11 | 66 |
| 12 | 110 |
| 13 | 173 |
| 14 | 285 |
| 15 | 463 |
| 16 | 749 |
| 17 | 1256 |
| 18 | 2075 |
| 19 | 3499 |
| 20 | 5884 |
| 21 | 9928 |
| 22 | 16754 |
| 23 | 28345 |
| 24 | 48037 |
| 25 | 82187 |
| 26 | 140358 |
| 27 | 239768 |
| 28 | 409315 |
| 29 | 700510 |
| 30 | 1200863 |
| 31 | 2061093 |
| 32 | 3544072 |
| 33 | 6098353 |
| 34 | 10505051 |
[0,0,1,2,3,4,6,12,19,30,40,66,110,173,285,463,749, 1256,2075,3499,5884,9928,16754,28345,48037,82187, 140358,239768,409315,700510,1200863,2061093, 3544072,6098353,10505051] |