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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 9 |
| 3 | 18 |
| 4 | 35 |
| 5 | 62 |
| 6 | 107 |
| 7 | 180 |
| 8 | 300 |
| 9 | 494 |
| 10 | 809 |
| 11 | 1319 |
| 12 | 2145 |
| 13 | 3482 |
| 14 | 5646 |
| 15 | 9148 |
| 16 | 14816 |
| 17 | 23987 |
| 18 | 38827 |
| 19 | 62839 |
| 20 | 101692 |
| 21 | 164558 |
| 22 | 266278 |
| 23 | 430865 |
| 24 | 697173 |
| 25 | 1128069 |
| 26 | 1825274 |
| 27 | 2953376 |
| 28 | 4778684 |
| 29 | 7732095 |
| 30 | 12510815 |
| 31 | 20242947 |
| 32 | 32753801 |
| 33 | 52996788 |
| 34 | 85750630 |
| 35 | 138747460 |
[1,2,9,18,35,62,107,180,300,494,809,1319,2145, 3482,5646,9148,14816,23987,38827,62839,101692, 164558,266278,430865,697173,1128069,1825274, 2953376,4778684,7732095,12510815,20242947, 32753801,52996788,85750630,138747460] |