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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 1 |
| 3 | 2 |
| 4 | 3 |
| 5 | 4 |
| 6 | 6 |
| 7 | 8 |
| 8 | 11 |
| 9 | 15 |
| 10 | 21 |
| 11 | 29 |
| 12 | 39 |
| 13 | 54 |
| 14 | 73 |
| 15 | 99 |
| 16 | 135 |
| 17 | 184 |
| 18 | 250 |
| 19 | 340 |
| 20 | 462 |
| 21 | 628 |
| 22 | 854 |
| 23 | 1161 |
| 24 | 1578 |
| 25 | 2145 |
| 26 | 2916 |
| 27 | 3964 |
| 28 | 5387 |
| 29 | 7322 |
| 30 | 9952 |
| 31 | 13526 |
| 32 | 18384 |
| 33 | 24987 |
| 34 | 33961 |
| 35 | 46159 |
| 36 | 62736 |
| 37 | 85267 |
| 38 | 115891 |
| 39 | 157512 |
| 40 | 214081 |
| 41 | 290967 |
| 42 | 395465 |
| 43 | 537493 |
[1,1,1,2,3,4,6,8,11,15,21,29,39,54,73,99,135,184, 250,340,462,628,854,1161,1578,2145,2916,3964,5387, 7322,9952,13526,18384,24987,33961,46159,62736, 85267,115891,157512,214081,290967,395465,537493] |