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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 4 |
| 3 | 8 |
| 4 | 15 |
| 5 | 27 |
| 6 | 47 |
| 7 | 80 |
| 8 | 134 |
| 9 | 222 |
| 10 | 365 |
| 11 | 596 |
| 12 | 970 |
| 13 | 1575 |
| 14 | 2554 |
| 15 | 4138 |
| 16 | 6701 |
| 17 | 10848 |
| 18 | 17558 |
| 19 | 28415 |
| 20 | 45982 |
| 21 | 74406 |
| 22 | 120397 |
| 23 | 194812 |
| 24 | 315218 |
| 25 | 510039 |
| 26 | 825266 |
| 27 | 1335314 |
| 28 | 2160589 |
| 29 | 3495912 |
| 30 | 5656510 |
| 31 | 9152431 |
| 32 | 14808950 |
| 33 | 23961390 |
| 34 | 38770349 |
| 35 | 62731748 |
| 36 | 101502106 |
[2,4,8,15,27,47,80,134,222,365,596,970,1575,2554, 4138,6701,10848,17558,28415,45982,74406,120397, 194812,315218,510039,825266,1335314,2160589, 3495912,5656510,9152431,14808950,23961390, 38770349,62731748,101502106] |