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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 0 |
| 3 | 0 |
| 4 | 0 |
| 5 | 0 |
| 6 | 0 |
| 7 | 0 |
| 8 | 1 |
| 9 | 10 |
| 10 | 30 |
| 11 | 120 |
| 12 | 0 |
| 13 | 0 |
| 14 | 0 |
| 15 | 0 |
| 16 | 0 |
| 17 | 0 |
| 18 | 0 |
| 19 | 0 |
| 20 | 0 |
| 21 | 0 |
| 22 | 0 |
| 23 | 0 |
| 24 | 0 |
| 25 | 0 |
| 26 | 0 |
| 27 | 1 |
| 28 | 50 |
| 29 | 150 |
| 30 | 240 |
| 31 | 60 |
| 32 | 20 |
| 33 | 0 |
| 34 | 0 |
| 35 | 0 |
| 36 | 0 |
| 37 | 0 |
| 38 | 0 |
| 39 | 0 |
| 40 | 0 |
| 41 | 0 |
| 42 | 0 |
| 43 | 0 |
| 44 | 0 |
| 45 | 0 |
| 46 | 1 |
| 47 | 250 |
| 48 | 140 |
| 49 | 40 |
| 50 | 10 |
| 51 | 300 |
| 52 | 510 |
| 53 | 130 |
| 54 | 30 |
| 55 | 0 |
| 56 | 10 |
| 57 | 0 |
| 58 | 0 |
| 59 | 0 |
| 60 | 0 |
| 61 | 0 |
| 62 | 0 |
| 63 | 0 |
| 64 | 0 |
| 65 | 0 |
| 66 | 0 |
| 67 | 0 |
| 68 | 1 |
| 69 | 120 |
| 70 | 90 |
| 71 | 10 |
[0,0,0,0,0,0,0,1,10,30,120,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,1,50,150,240,60,20,0,0,0,0,0,0,0,0,0,0,0, 0,0,1,250,140,40,10,300,510,130,30,0,10,0,0,0,0,0, 0,0,0,0,0,0,1,120,90,10] |