| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 2 |
| 2 | 3 |
| 3 | 6 |
| 4 | 10 |
| 5 | 17 |
| 6 | 28 |
| 7 | 46 |
| 8 | 75 |
| 9 | 122 |
| 10 | 198 |
| 11 | 321 |
| 12 | 520 |
| 13 | 842 |
| 14 | 1363 |
| 15 | 2206 |
| 16 | 3570 |
| 17 | 5777 |
| 18 | 9348 |
| 19 | 15126 |
| 20 | 24475 |
| 21 | 39602 |
| 22 | 64078 |
| 23 | 103681 |
| 24 | 167760 |
| 25 | 271442 |
| 26 | 439203 |
| 27 | 710646 |
| 28 | 1149850 |
| 29 | 1860497 |
| 30 | 3010348 |
| 31 | 4870846 |
| 32 | 7881195 |
| 33 | 12752042 |
| 34 | 20633238 |
| 35 | 33385281 |
| 36 | 54018520 |
[0,2,3,6,10,17,28,46,75,122,198,321,520,842,1363, 2206,3570,5777,9348,15126,24475,39602,64078, 103681,167760,271442,439203,710646,1149850, 1860497,3010348,4870846,7881195,12752042,20633238, 33385281,54018520] |