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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 3 |
| 3 | 4 |
| 4 | 10 |
| 5 | 13 |
| 6 | 28 |
| 7 | 44 |
| 8 | 85 |
| 9 | 139 |
| 10 | 263 |
| 11 | 450 |
| 12 | 815 |
| 13 | 1403 |
| 14 | 2540 |
| 15 | 4447 |
| 16 | 7868 |
| 17 | 13769 |
| 18 | 24500 |
| 19 | 43106 |
| 20 | 75685 |
| 21 | 132865 |
| 22 | 234600 |
| 23 | 412731 |
| 24 | 722450 |
| 25 | 1267901 |
| 26 | 2230016 |
| 27 | 3917654 |
| 28 | 6847502 |
| 29 | 12004150 |
| 30 | 21063678 |
| 31 | 36947904 |
| 32 | 64523312 |
| 33 | 112983428 |
| 34 | 197934436 |
| 35 | 346735329 |
| 36 | 605134987 |
| 37 | 1058544744 |
[1,3,4,10,13,28,44,85,139,263,450,815,1403,2540, 4447,7868,13769,24500,43106,75685,132865,234600, 412731,722450,1267901,2230016,3917654,6847502, 12004150,21063678,36947904,64523312,112983428, 197934436,346735329,605134987,1058544744] |