n | a(n) |
---|---|
1 | -1 |
2 | -1 |
3 | 1 |
4 | 1 |
5 | -1 |
6 | 2 |
7 | 3 |
8 | 1 |
9 | -1 |
10 | 3 |
11 | 6 |
12 | 4 |
13 | 1 |
14 | -1 |
15 | 4 |
16 | 10 |
17 | 10 |
18 | 5 |
19 | 1 |
20 | -1 |
21 | 5 |
22 | 15 |
23 | 20 |
24 | 15 |
25 | 6 |
26 | 1 |
27 | -1 |
28 | 6 |
29 | 21 |
30 | 35 |
31 | 35 |
32 | 21 |
33 | 7 |
34 | 1 |
35 | -1 |
36 | 7 |
37 | 28 |
38 | 56 |
39 | 70 |
40 | 56 |
41 | 28 |
42 | 8 |
43 | 1 |
44 | -1 |
45 | 8 |
46 | 36 |
47 | 84 |
48 | 126 |
49 | 126 |
50 | 84 |
51 | 36 |
52 | 9 |
53 | 1 |
54 | -1 |
55 | 9 |
56 | 45 |
57 | 120 |
58 | 210 |
59 | 252 |
60 | 210 |
61 | 120 |
62 | 45 |
63 | 10 |
64 | 1 |
65 | -1 |
66 | 10 |
67 | 55 |
68 | 165 |
69 | 330 |
70 | 462 |
71 | 462 |
72 | 330 |
73 | 165 |
74 | 55 |
75 | 11 |
76 | 1 |
[-1,-1,1,1,-1,2,3,1,-1,3,6,4,1,-1,4,10,10,5,1,-1, 5,15,20,15,6,1,-1,6,21,35,35,21,7,1,-1,7,28,56,70, 56,28,8,1,-1,8,36,84,126,126,84,36,9,1,-1,9,45, 120,210,252,210,120,45,10,1,-1,10,55,165,330,462, 462,330,165,55,11,1] |