n | a(n) |
---|---|
1 | 1 |
2 | 0 |
3 | 2 |
4 | 0 |
5 | 3 |
6 | 3 |
7 | 0 |
8 | 12 |
9 | 7 |
10 | 5 |
11 | 0 |
12 | 60 |
13 | 35 |
14 | 17 |
15 | 8 |
16 | 0 |
17 | 360 |
18 | 210 |
19 | 102 |
20 | 35 |
21 | 13 |
22 | 0 |
23 | 2520 |
24 | 1470 |
25 | 714 |
26 | 245 |
27 | 70 |
28 | 21 |
29 | 0 |
30 | 20160 |
31 | 11760 |
32 | 5712 |
33 | 1960 |
34 | 560 |
35 | 134 |
36 | 34 |
37 | 0 |
38 | 181440 |
39 | 105840 |
40 | 51408 |
41 | 17640 |
42 | 5040 |
43 | 1206 |
44 | 251 |
45 | 55 |
46 | 0 |
47 | 1814400 |
48 | 1058400 |
49 | 514080 |
50 | 176400 |
51 | 50400 |
52 | 12060 |
[1,0,2,0,3,3,0,12,7,5,0,60,35,17,8,0,360,210,102, 35,13,0,2520,1470,714,245,70,21,0,20160,11760, 5712,1960,560,134,34,0,181440,105840,51408,17640, 5040,1206,251,55,0,1814400,1058400,514080,176400, 50400,12060] |