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| n | a(n) |
|---|---|
| 0 | 2 |
| 1 | 4 |
| 2 | 7 |
| 3 | 12 |
| 4 | 19 |
| 5 | 31 |
| 6 | 49 |
| 7 | 80 |
| 8 | 129 |
| 9 | 210 |
| 10 | 339 |
| 11 | 549 |
| 12 | 887 |
| 13 | 1436 |
| 14 | 2323 |
| 15 | 3760 |
| 16 | 6083 |
| 17 | 9843 |
| 18 | 15925 |
| 19 | 25768 |
| 20 | 41693 |
| 21 | 67462 |
| 22 | 109155 |
| 23 | 176617 |
| 24 | 285771 |
| 25 | 462388 |
| 26 | 748159 |
| 27 | 1210548 |
| 28 | 1958707 |
| 29 | 3169255 |
| 30 | 5127961 |
| 31 | 8297216 |
| 32 | 13425177 |
| 33 | 21722394 |
| 34 | 35147571 |
| 35 | 56869965 |
| 36 | 92017535 |
| 37 | 148887500 |
[2,4,7,12,19,31,49,80,129,210,339,549,887,1436, 2323,3760,6083,9843,15925,25768,41693,67462, 109155,176617,285771,462388,748159,1210548, 1958707,3169255,5127961,8297216,13425177,21722394, 35147571,56869965,92017535,148887500] |