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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 0 |
| 2 | 1 |
| 3 | 1 |
| 4 | 0 |
| 5 | 1 |
| 6 | 0 |
| 7 | 3 |
| 8 | 0 |
| 9 | 1 |
| 10 | 9 |
| 11 | 0 |
| 12 | 6 |
| 13 | 0 |
| 14 | 1 |
| 15 | 0 |
| 16 | 45 |
| 17 | 0 |
| 18 | 10 |
| 19 | 0 |
| 20 | 1 |
| 21 | 105 |
| 22 | 0 |
| 23 | 135 |
| 24 | 0 |
| 25 | 15 |
| 26 | 0 |
| 27 | 1 |
| 28 | 0 |
| 29 | 735 |
| 30 | 0 |
| 31 | 315 |
| 32 | 0 |
| 33 | 21 |
| 34 | 0 |
| 35 | 1 |
| 36 | 2625 |
| 37 | 0 |
| 38 | 2940 |
| 39 | 0 |
| 40 | 630 |
| 41 | 0 |
| 42 | 28 |
| 43 | 0 |
| 44 | 1 |
| 45 | 0 |
| 46 | 23625 |
| 47 | 0 |
| 48 | 8820 |
| 49 | 0 |
| 50 | 1134 |
| 51 | 0 |
| 52 | 36 |
| 53 | 0 |
| 54 | 1 |
| 55 | 76545 |
| 56 | 0 |
| 57 | 118125 |
| 58 | 0 |
[1,0,1,1,0,1,0,3,0,1,9,0,6,0,1,0,45,0,10,0,1,105, 0,135,0,15,0,1,0,735,0,315,0,21,0,1,2625,0,2940,0, 630,0,28,0,1,0,23625,0,8820,0,1134,0,36,0,1,76545, 0,118125,0] |