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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 0 |
| 3 | 1 |
| 4 | 1 |
| 5 | 2 |
| 6 | 1 |
| 7 | 1 |
| 8 | 3 |
| 9 | 6 |
| 10 | 6 |
| 11 | 6 |
| 12 | 3 |
| 13 | 1 |
| 14 | 1 |
| 15 | 6 |
| 16 | 15 |
| 17 | 34 |
| 18 | 58 |
| 19 | 60 |
| 20 | 60 |
| 21 | 50 |
| 22 | 33 |
| 23 | 10 |
| 24 | 1 |
| 25 | 1 |
| 26 | 10 |
| 27 | 35 |
| 28 | 120 |
| 29 | 265 |
| 30 | 475 |
| 31 | 820 |
| 32 | 1200 |
| 33 | 1615 |
| 34 | 1860 |
| 35 | 1693 |
| 36 | 1060 |
| 37 | 425 |
| 38 | 105 |
| 39 | 15 |
| 40 | 1 |
| 41 | 1 |
| 42 | 15 |
| 43 | 75 |
| 44 | 330 |
| 45 | 990 |
| 46 | 2691 |
| 47 | 6326 |
| 48 | 13170 |
| 49 | 26205 |
| 50 | 48055 |
| 51 | 79206 |
| 52 | 112863 |
| 53 | 133535 |
| 54 | 124680 |
| 55 | 88890 |
| 56 | 47874 |
[1,1,0,1,1,2,1,1,3,6,6,6,3,1,1,6,15,34,58,60,60, 50,33,10,1,1,10,35,120,265,475,820,1200,1615,1860, 1693,1060,425,105,15,1,1,15,75,330,990,2691,6326, 13170,26205,48055,79206,112863,133535,124680, 88890,47874] |