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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 3 |
| 2 | 7 |
| 3 | 15 |
| 4 | 28 |
| 5 | 50 |
| 6 | 87 |
| 7 | 147 |
| 8 | 245 |
| 9 | 404 |
| 10 | 662 |
| 11 | 1080 |
| 12 | 1757 |
| 13 | 2854 |
| 14 | 4629 |
| 15 | 7502 |
| 16 | 12151 |
| 17 | 19674 |
| 18 | 31847 |
| 19 | 51544 |
| 20 | 83415 |
| 21 | 134984 |
| 22 | 218425 |
| 23 | 353436 |
| 24 | 571889 |
| 25 | 925355 |
| 26 | 1497275 |
| 27 | 2422662 |
| 28 | 3919970 |
| 29 | 6342666 |
| 30 | 10262671 |
| 31 | 16605373 |
| 32 | 26868081 |
| 33 | 43473492 |
| 34 | 70341612 |
| 35 | 113815144 |
| 36 | 184156797 |
[1,3,7,15,28,50,87,147,245,404,662,1080,1757,2854, 4629,7502,12151,19674,31847,51544,83415,134984, 218425,353436,571889,925355,1497275,2422662, 3919970,6342666,10262671,16605373,26868081, 43473492,70341612,113815144,184156797] |