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A090683 as a simple table
| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 0 |
| 2 | 1 |
| 3 | 0 |
| 4 | 2 |
| 5 | 1 |
| 6 | 0 |
| 7 | 3 |
| 8 | 9 |
| 9 | 1 |
| 10 | 0 |
| 11 | 4 |
| 12 | 42 |
| 13 | 24 |
| 14 | 1 |
| 15 | 0 |
| 16 | 5 |
| 17 | 150 |
| 18 | 250 |
| 19 | 50 |
| 20 | 1 |
| 21 | 0 |
| 22 | 6 |
| 23 | 465 |
| 24 | 1800 |
| 25 | 975 |
| 26 | 90 |
| 27 | 1 |
| 28 | 0 |
| 29 | 7 |
| 30 | 1323 |
| 31 | 10535 |
| 32 | 12250 |
| 33 | 2940 |
| 34 | 147 |
| 35 | 1 |
| 36 | 0 |
| 37 | 8 |
| 38 | 3556 |
| 39 | 54096 |
| 40 | 119070 |
| 41 | 58800 |
| 42 | 7448 |
| 43 | 224 |
| 44 | 1 |
| 45 | 0 |
| 46 | 9 |
| 47 | 9180 |
| 48 | 254100 |
| 49 | 979020 |
| 50 | 875826 |
| 51 | 222264 |
| 52 | 16632 |
| 53 | 324 |
| 54 | 1 |
| 55 | 0 |
| 56 | 10 |
| 57 | 22995 |
| 58 | 1119600 |
| 59 | 7162050 |
| 60 | 10716300 |
| 61 | 4793670 |
| 62 | 705600 |
| 63 | 33750 |
| 64 | 450 |
| 65 | 1 |
[1,0,1,0,2,1,0,3,9,1,0,4,42,24,1,0,5,150,250,50,1, 0,6,465,1800,975,90,1,0,7,1323,10535,12250,2940, 147,1,0,8,3556,54096,119070,58800,7448,224,1,0,9, 9180,254100,979020,875826,222264,16632,324,1,0,10, 22995,1119600,7162050,10716300,4793670,705600, 33750,450,1] |