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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | 3 |
| 3 | 6 |
| 4 | 12 |
| 5 | 21 |
| 6 | 37 |
| 7 | 62 |
| 8 | 104 |
| 9 | 171 |
| 10 | 281 |
| 11 | 458 |
| 12 | 746 |
| 13 | 1211 |
| 14 | 1965 |
| 15 | 3184 |
| 16 | 5158 |
| 17 | 8351 |
| 18 | 13519 |
| 19 | 21880 |
| 20 | 35410 |
| 21 | 57301 |
| 22 | 92723 |
| 23 | 150036 |
| 24 | 242772 |
| 25 | 392821 |
| 26 | 635607 |
| 27 | 1028442 |
| 28 | 1664064 |
| 29 | 2692521 |
| 30 | 4356601 |
| 31 | 7049138 |
| 32 | 11405756 |
| 33 | 18454911 |
| 34 | 29860685 |
| 35 | 48315614 |
| 36 | 78176318 |
| 37 | 126491951 |
| 38 | 204668289 |
[0,1,3,6,12,21,37,62,104,171,281,458,746,1211, 1965,3184,5158,8351,13519,21880,35410,57301,92723, 150036,242772,392821,635607,1028442,1664064, 2692521,4356601,7049138,11405756,18454911, 29860685,48315614,78176318,126491951,204668289] |