| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 1 |
| 5 | 1 |
| 6 | 2 |
| 7 | 2 |
| 8 | 3 |
| 9 | 4 |
| 10 | 5 |
| 11 | 7 |
| 12 | 10 |
| 13 | 13 |
| 14 | 18 |
| 15 | 25 |
| 16 | 35 |
| 17 | 48 |
| 18 | 66 |
| 19 | 91 |
| 20 | 125 |
| 21 | 173 |
| 22 | 238 |
| 23 | 329 |
| 24 | 454 |
| 25 | 626 |
| 26 | 864 |
| 27 | 1193 |
| 28 | 1646 |
| 29 | 2272 |
| 30 | 3136 |
| 31 | 4329 |
| 32 | 5975 |
| 33 | 8247 |
| 34 | 11383 |
| 35 | 15711 |
| 36 | 21686 |
| 37 | 29932 |
| 38 | 41315 |
| 39 | 57026 |
| 40 | 78711 |
| 41 | 108643 |
| 42 | 149958 |
| 43 | 206983 |
| 44 | 285694 |
| 45 | 394337 |
| 46 | 544295 |
| 47 | 751278 |
| 48 | 1036972 |
[0,1,1,1,1,1,2,2,3,4,5,7,10,13,18,25,35,48,66,91, 125,173,238,329,454,626,864,1193,1646,2272,3136, 4329,5975,8247,11383,15711,21686,29932,41315, 57026,78711,108643,149958,206983,285694,394337, 544295,751278,1036972] |