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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | 3 |
| 3 | 8 |
| 4 | 17 |
| 5 | 34 |
| 6 | 64 |
| 7 | 114 |
| 8 | 195 |
| 9 | 325 |
| 10 | 526 |
| 11 | 832 |
| 12 | 1292 |
| 13 | 1970 |
| 14 | 2958 |
| 15 | 4384 |
| 16 | 6413 |
| 17 | 9276 |
| 18 | 13283 |
| 19 | 18836 |
| 20 | 26478 |
| 21 | 36924 |
| 22 | 51096 |
| 23 | 70210 |
| 24 | 95844 |
| 25 | 130019 |
| 26 | 175350 |
| 27 | 235192 |
| 28 | 313802 |
| 29 | 416618 |
| 30 | 550540 |
| 31 | 724250 |
| 32 | 948719 |
| 33 | 1237732 |
| 34 | 1608508 |
| 35 | 2082600 |
| 36 | 2686857 |
| 37 | 3454590 |
| 38 | 4427144 |
| 39 | 5655652 |
[0,1,3,8,17,34,64,114,195,325,526,832,1292,1970, 2958,4384,6413,9276,13283,18836,26478,36924,51096, 70210,95844,130019,175350,235192,313802,416618, 550540,724250,948719,1237732,1608508,2082600, 2686857,3454590,4427144,5655652] |