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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 13 |
| 3 | 27 |
| 4 | 54 |
| 5 | 97 |
| 6 | 169 |
| 7 | 286 |
| 8 | 477 |
| 9 | 787 |
| 10 | 1290 |
| 11 | 2106 |
| 12 | 3428 |
| 13 | 5568 |
| 14 | 9032 |
| 15 | 14638 |
| 16 | 23710 |
| 17 | 38390 |
| 18 | 62144 |
| 19 | 100580 |
| 20 | 162772 |
| 21 | 263402 |
| 22 | 426226 |
| 23 | 689682 |
| 24 | 1115965 |
| 25 | 1805707 |
| 26 | 2921734 |
| 27 | 4727505 |
| 28 | 7649305 |
| 29 | 12376878 |
| 30 | 20026253 |
| 31 | 32403203 |
| 32 | 52429530 |
| 33 | 84832809 |
| 34 | 137262417 |
| 35 | 222095306 |
[1,2,13,27,54,97,169,286,477,787,1290,2106,3428, 5568,9032,14638,23710,38390,62144,100580,162772, 263402,426226,689682,1115965,1805707,2921734, 4727505,7649305,12376878,20026253,32403203, 52429530,84832809,137262417,222095306] |