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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 3 |
| 5 | 5 |
| 6 | 9 |
| 7 | 15 |
| 8 | 27 |
| 9 | 47 |
| 10 | 83 |
| 11 | 145 |
| 12 | 255 |
| 13 | 447 |
| 14 | 785 |
| 15 | 1377 |
| 16 | 2417 |
| 17 | 4241 |
| 18 | 7443 |
| 19 | 13061 |
| 20 | 22921 |
| 21 | 40223 |
| 22 | 70587 |
| 23 | 123871 |
| 24 | 217379 |
| 25 | 381473 |
| 26 | 669439 |
| 27 | 1174783 |
| 28 | 2061601 |
| 29 | 3617857 |
| 30 | 6348897 |
| 31 | 11141537 |
| 32 | 19552035 |
| 33 | 34311429 |
| 34 | 60212361 |
| 35 | 105665327 |
| 36 | 185429723 |
| 37 | 325406479 |
| 38 | 571048563 |
| 39 | 1002120369 |
[1,1,1,1,3,5,9,15,27,47,83,145,255,447,785,1377, 2417,4241,7443,13061,22921,40223,70587,123871, 217379,381473,669439,1174783,2061601,3617857, 6348897,11141537,19552035,34311429,60212361, 105665327,185429723,325406479,571048563, 1002120369] |