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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 3 |
| 3 | 4 |
| 4 | 6 |
| 5 | 10 |
| 6 | 15 |
| 7 | 22 |
| 8 | 35 |
| 9 | 54 |
| 10 | 81 |
| 11 | 125 |
| 12 | 193 |
| 13 | 294 |
| 14 | 450 |
| 15 | 692 |
| 16 | 1060 |
| 17 | 1622 |
| 18 | 2488 |
| 19 | 3815 |
| 20 | 5843 |
| 21 | 8955 |
| 22 | 13729 |
| 23 | 21038 |
| 24 | 32239 |
| 25 | 49415 |
| 26 | 75734 |
| 27 | 116062 |
| 28 | 177879 |
| 29 | 272623 |
| 30 | 417812 |
| 31 | 640332 |
| 32 | 981380 |
| 33 | 1504053 |
| 34 | 2305088 |
| 35 | 3532772 |
| 36 | 5414309 |
| 37 | 8297912 |
| 38 | 12717320 |
| 39 | 19490493 |
[2,3,4,6,10,15,22,35,54,81,125,193,294,450,692, 1060,1622,2488,3815,5843,8955,13729,21038,32239, 49415,75734,116062,177879,272623,417812,640332, 981380,1504053,2305088,3532772,5414309,8297912, 12717320,19490493] |