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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 3 |
| 4 | 4 |
| 5 | 7 |
| 6 | 8 |
| 7 | 15 |
| 8 | 24 |
| 9 | 43 |
| 10 | 56 |
| 11 | 111 |
| 12 | 132 |
| 13 | 263 |
| 14 | 420 |
| 15 | 723 |
| 16 | 1040 |
| 17 | 2079 |
| 18 | 2472 |
| 19 | 4943 |
| 20 | 7448 |
| 21 | 13091 |
| 22 | 19236 |
| 23 | 38471 |
| 24 | 45884 |
| 25 | 86119 |
| 26 | 138024 |
| 27 | 248459 |
| 28 | 359142 |
| 29 | 718283 |
| 30 | 764160 |
| 31 | 1528319 |
| 32 | 2605756 |
| 33 | 4858899 |
| 34 | 7109964 |
| 35 | 13809075 |
| 36 | 16009784 |
| 37 | 32019567 |
| 38 | 52524888 |
| 39 | 95697787 |
| 40 | 125396930 |
[1,2,3,4,7,8,15,24,43,56,111,132,263,420,723,1040, 2079,2472,4943,7448,13091,19236,38471,45884,86119, 138024,248459,359142,718283,764160,1528319, 2605756,4858899,7109964,13809075,16009784, 32019567,52524888,95697787,125396930] |