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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 2 |
| 3 | 2 |
| 4 | 3 |
| 5 | 4 |
| 6 | 6 |
| 7 | 9 |
| 8 | 12 |
| 9 | 18 |
| 10 | 26 |
| 11 | 37 |
| 12 | 52 |
| 13 | 77 |
| 14 | 110 |
| 15 | 156 |
| 16 | 226 |
| 17 | 324 |
| 18 | 464 |
| 19 | 668 |
| 20 | 960 |
| 21 | 1370 |
| 22 | 1977 |
| 23 | 2834 |
| 24 | 4060 |
| 25 | 5832 |
| 26 | 8371 |
| 27 | 11993 |
| 28 | 17219 |
| 29 | 24695 |
| 30 | 35408 |
| 31 | 50837 |
| 32 | 72880 |
| 33 | 104619 |
| 34 | 150065 |
| 35 | 215343 |
| 36 | 308868 |
| 37 | 443380 |
| 38 | 635753 |
| 39 | 912581 |
| 40 | 1308771 |
| 41 | 1878238 |
| 42 | 2693939 |
| 43 | 3866059 |
| 44 | 5544795 |
[1,1,2,2,3,4,6,9,12,18,26,37,52,77,110,156,226, 324,464,668,960,1370,1977,2834,4060,5832,8371, 11993,17219,24695,35408,50837,72880,104619,150065, 215343,308868,443380,635753,912581,1308771, 1878238,2693939,3866059,5544795] |