n | a(n) |
---|---|
1 | 0 |
2 | 1 |
3 | 0 |
4 | 6 |
5 | 0 |
6 | 15 |
7 | 0 |
8 | 0 |
9 | 0 |
10 | 45 |
11 | 0 |
12 | 66 |
13 | 0 |
14 | 0 |
15 | 0 |
16 | 120 |
17 | 0 |
18 | 153 |
19 | 0 |
20 | 0 |
21 | 0 |
22 | 231 |
23 | 0 |
24 | 0 |
25 | 0 |
26 | 0 |
27 | 0 |
28 | 378 |
29 | 0 |
30 | 435 |
31 | 0 |
32 | 0 |
33 | 0 |
34 | 0 |
35 | 0 |
36 | 630 |
37 | 0 |
38 | 0 |
39 | 0 |
40 | 780 |
41 | 0 |
42 | 861 |
43 | 0 |
44 | 0 |
45 | 0 |
46 | 1035 |
47 | 0 |
48 | 0 |
49 | 0 |
50 | 0 |
51 | 0 |
52 | 1326 |
53 | 0 |
54 | 0 |
55 | 0 |
56 | 0 |
57 | 0 |
58 | 1653 |
59 | 0 |
60 | 1770 |
61 | 0 |
62 | 0 |
63 | 0 |
64 | 0 |
65 | 0 |
66 | 2145 |
67 | 0 |
68 | 0 |
69 | 0 |
70 | 2415 |
71 | 0 |
72 | 2556 |
73 | 0 |
74 | 0 |
75 | 0 |
76 | 0 |
77 | 0 |
78 | 3003 |
79 | 0 |
80 | 0 |
81 | 0 |
82 | 3321 |
[0,1,0,6,0,15,0,0,0,45,0,66,0,0,0,120,0,153,0,0,0, 231,0,0,0,0,0,378,0,435,0,0,0,0,0,630,0,0,0,780,0, 861,0,0,0,1035,0,0,0,0,0,1326,0,0,0,0,0,1653,0, 1770,0,0,0,0,0,2145,0,0,0,2415,0,2556,0,0,0,0,0, 3003,0,0,0,3321] |