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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 3 |
| 3 | 6 |
| 4 | 13 |
| 5 | 25 |
| 6 | 50 |
| 7 | 93 |
| 8 | 175 |
| 9 | 320 |
| 10 | 582 |
| 11 | 1041 |
| 12 | 1851 |
| 13 | 3253 |
| 14 | 5682 |
| 15 | 9848 |
| 16 | 16970 |
| 17 | 29070 |
| 18 | 49559 |
| 19 | 84090 |
| 20 | 142107 |
| 21 | 239239 |
| 22 | 401404 |
| 23 | 671386 |
| 24 | 1119799 |
| 25 | 1862861 |
| 26 | 3091708 |
| 27 | 5120090 |
| 28 | 8462535 |
| 29 | 13961695 |
| 30 | 22996307 |
| 31 | 37819865 |
| 32 | 62112581 |
| 33 | 101879568 |
| 34 | 166912537 |
| 35 | 273166466 |
| 36 | 446623176 |
[1,3,6,13,25,50,93,175,320,582,1041,1851,3253, 5682,9848,16970,29070,49559,84090,142107,239239, 401404,671386,1119799,1862861,3091708,5120090, 8462535,13961695,22996307,37819865,62112581, 101879568,166912537,273166466,446623176] |