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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 0 |
| 3 | 2 |
| 4 | 0 |
| 5 | 0 |
| 6 | 6 |
| 7 | 0 |
| 8 | 8 |
| 9 | 8 |
| 10 | 8 |
| 11 | 0 |
| 12 | 0 |
| 13 | 40 |
| 14 | 60 |
| 15 | 20 |
| 16 | 0 |
| 17 | 0 |
| 18 | 468 |
| 19 | 192 |
| 20 | 48 |
| 21 | 12 |
| 22 | 0 |
| 23 | 0 |
| 24 | 462 |
| 25 | 3150 |
| 26 | 1176 |
| 27 | 210 |
| 28 | 42 |
| 29 | 0 |
| 30 | 128 |
| 31 | 4192 |
| 32 | 27872 |
| 33 | 6592 |
| 34 | 1312 |
| 35 | 192 |
| 36 | 32 |
| 37 | 0 |
| 38 | 0 |
| 39 | 57402 |
| 40 | 182790 |
| 41 | 99630 |
| 42 | 19656 |
| 43 | 2970 |
| 44 | 378 |
| 45 | 54 |
| 46 | 0 |
| 47 | 0 |
| 48 | 67440 |
| 49 | 1795320 |
| 50 | 1594640 |
| 51 | 146200 |
| 52 | 22000 |
| 53 | 2840 |
| 54 | 320 |
| 55 | 40 |
| 56 | 0 |
| 57 | 0 |
| 58 | 61050 |
| 59 | 17433130 |
| 60 | 17373620 |
| 61 | 4289340 |
| 62 | 662860 |
| 63 | 85910 |
| 64 | 9790 |
| 65 | 990 |
| 66 | 110 |
[1,0,2,0,0,6,0,8,8,8,0,0,40,60,20,0,0,468,192,48, 12,0,0,462,3150,1176,210,42,0,128,4192,27872,6592, 1312,192,32,0,0,57402,182790,99630,19656,2970,378, 54,0,0,67440,1795320,1594640,146200,22000,2840, 320,40,0,0,61050,17433130,17373620,4289340,662860, 85910,9790,990,110] |