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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 0 |
| 2 | 0 |
| 3 | 2 |
| 4 | 3 |
| 5 | 4 |
| 6 | 8 |
| 7 | 11 |
| 8 | 15 |
| 9 | 26 |
| 10 | 35 |
| 11 | 47 |
| 12 | 80 |
| 13 | 107 |
| 14 | 143 |
| 15 | 242 |
| 16 | 323 |
| 17 | 431 |
| 18 | 728 |
| 19 | 971 |
| 20 | 1295 |
| 21 | 2186 |
| 22 | 2915 |
| 23 | 3887 |
| 24 | 6560 |
| 25 | 8747 |
| 26 | 11663 |
| 27 | 19682 |
| 28 | 26243 |
| 29 | 34991 |
| 30 | 59048 |
| 31 | 78731 |
| 32 | 104975 |
| 33 | 177146 |
| 34 | 236195 |
| 35 | 314927 |
| 36 | 531440 |
| 37 | 708587 |
| 38 | 944783 |
| 39 | 1594322 |
| 40 | 2125763 |
| 41 | 2834351 |
| 42 | 4782968 |
| 43 | 6377291 |
| 44 | 8503055 |
| 45 | 14348906 |
[0,0,0,2,3,4,8,11,15,26,35,47,80,107,143,242,323, 431,728,971,1295,2186,2915,3887,6560,8747,11663, 19682,26243,34991,59048,78731,104975,177146, 236195,314927,531440,708587,944783,1594322, 2125763,2834351,4782968,6377291,8503055,14348906] |