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| n | a(n) |
|---|---|
| 0 | -2 |
| 1 | 0 |
| 2 | 0 |
| 3 | 1 |
| 4 | 5 |
| 5 | 8 |
| 6 | 21 |
| 7 | 33 |
| 8 | 70 |
| 9 | 111 |
| 10 | 213 |
| 11 | 340 |
| 12 | 617 |
| 13 | 989 |
| 14 | 1734 |
| 15 | 2787 |
| 16 | 4777 |
| 17 | 7692 |
| 18 | 12981 |
| 19 | 20929 |
| 20 | 34934 |
| 21 | 56375 |
| 22 | 93357 |
| 23 | 150756 |
| 24 | 248209 |
| 25 | 401013 |
| 26 | 657414 |
| 27 | 1062523 |
| 28 | 1736321 |
| 29 | 2807036 |
| 30 | 4576125 |
| 31 | 7399545 |
| 32 | 12041206 |
| 33 | 19473519 |
| 34 | 31645797 |
| 35 | 51184852 |
| 36 | 83092793 |
| 37 | 134408717 |
[-2,0,0,1,5,8,21,33,70,111,213,340,617,989,1734, 2787,4777,7692,12981,20929,34934,56375,93357, 150756,248209,401013,657414,1062523,1736321, 2807036,4576125,7399545,12041206,19473519, 31645797,51184852,83092793,134408717] |