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| n | a(n) |
|---|---|
| 3 | 0 |
| 4 | 0 |
| 5 | 0 |
| 6 | 1 |
| 7 | 0 |
| 8 | 0 |
| 9 | 0 |
| 10 | 4 |
| 11 | 3 |
| 12 | 0 |
| 13 | 0 |
| 14 | 0 |
| 15 | 10 |
| 16 | 15 |
| 17 | 12 |
| 18 | 0 |
| 19 | 0 |
| 20 | 0 |
| 21 | 20 |
| 22 | 45 |
| 23 | 72 |
| 24 | 60 |
| 25 | 0 |
| 26 | 0 |
| 27 | 0 |
| 28 | 35 |
| 29 | 105 |
| 30 | 252 |
| 31 | 420 |
| 32 | 360 |
| 33 | 0 |
| 34 | 0 |
| 35 | 0 |
| 36 | 56 |
| 37 | 210 |
| 38 | 672 |
| 39 | 1680 |
| 40 | 2880 |
| 41 | 2520 |
| 42 | 0 |
| 43 | 0 |
| 44 | 0 |
| 45 | 84 |
| 46 | 378 |
| 47 | 1512 |
| 48 | 5040 |
| 49 | 12960 |
| 50 | 22680 |
| 51 | 20160 |
| 52 | 0 |
| 53 | 0 |
| 54 | 0 |
| 55 | 120 |
| 56 | 630 |
| 57 | 3024 |
| 58 | 12600 |
| 59 | 43200 |
| 60 | 113400 |
| 61 | 201600 |
| 62 | 181440 |
[0,0,0,1,0,0,0,4,3,0,0,0,10,15,12,0,0,0,20,45,72, 60,0,0,0,35,105,252,420,360,0,0,0,56,210,672,1680, 2880,2520,0,0,0,84,378,1512,5040,12960,22680, 20160,0,0,0,120,630,3024,12600,43200,113400, 201600,181440] |