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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 0 |
| 2 | 1 |
| 3 | 0 |
| 4 | 2 |
| 5 | 0 |
| 6 | 0 |
| 7 | 3 |
| 8 | 0 |
| 9 | 6 |
| 10 | 0 |
| 11 | 4 |
| 12 | 0 |
| 13 | 24 |
| 14 | 0 |
| 15 | 0 |
| 16 | 5 |
| 17 | 0 |
| 18 | 60 |
| 19 | 0 |
| 20 | 30 |
| 21 | 0 |
| 22 | 6 |
| 23 | 0 |
| 24 | 120 |
| 25 | 0 |
| 26 | 180 |
| 27 | 0 |
| 28 | 0 |
| 29 | 7 |
| 30 | 0 |
| 31 | 210 |
| 32 | 0 |
| 33 | 630 |
| 34 | 0 |
| 35 | 140 |
| 36 | 0 |
| 37 | 8 |
| 38 | 0 |
| 39 | 336 |
| 40 | 0 |
| 41 | 1680 |
| 42 | 0 |
| 43 | 1120 |
| 44 | 0 |
| 45 | 0 |
| 46 | 9 |
| 47 | 0 |
| 48 | 504 |
| 49 | 0 |
| 50 | 3780 |
| 51 | 0 |
| 52 | 5040 |
| 53 | 0 |
| 54 | 630 |
| 55 | 0 |
| 56 | 10 |
| 57 | 0 |
| 58 | 720 |
| 59 | 0 |
| 60 | 7560 |
| 61 | 0 |
| 62 | 16800 |
| 63 | 0 |
| 64 | 6300 |
| 65 | 0 |
| 66 | 0 |
| 67 | 11 |
| 68 | 0 |
| 69 | 990 |
| 70 | 0 |
| 71 | 13860 |
| 72 | 0 |
| 73 | 46200 |
| 74 | 0 |
| 75 | 34650 |
| 76 | 0 |
| 77 | 2772 |
| 78 | 0 |
| 79 | 12 |
[0,0,1,0,2,0,0,3,0,6,0,4,0,24,0,0,5,0,60,0,30,0,6, 0,120,0,180,0,0,7,0,210,0,630,0,140,0,8,0,336,0, 1680,0,1120,0,0,9,0,504,0,3780,0,5040,0,630,0,10, 0,720,0,7560,0,16800,0,6300,0,0,11,0,990,0,13860, 0,46200,0,34650,0,2772,0,12] |