n | a(n) |
---|---|
1 | 0 |
2 | 2 |
3 | 6 |
4 | 4 |
5 | 15 |
6 | 48 |
7 | 0 |
8 | 0 |
9 | 45 |
10 | 120 |
11 | 66 |
12 | 168 |
13 | 0 |
14 | 0 |
15 | 120 |
16 | 288 |
17 | 153 |
18 | 360 |
19 | 0 |
20 | 0 |
21 | 231 |
22 | 528 |
23 | 0 |
24 | 0 |
25 | 0 |
26 | 0 |
27 | 378 |
28 | 840 |
29 | 435 |
30 | 960 |
31 | 0 |
32 | 0 |
33 | 0 |
34 | 0 |
35 | 630 |
36 | 1368 |
37 | 0 |
38 | 0 |
39 | 780 |
40 | 1680 |
41 | 861 |
42 | 1848 |
43 | 0 |
44 | 0 |
45 | 1035 |
46 | 2208 |
47 | 0 |
48 | 0 |
49 | 0 |
50 | 0 |
51 | 1326 |
52 | 2808 |
53 | 0 |
54 | 0 |
55 | 0 |
56 | 0 |
57 | 1653 |
58 | 3480 |
59 | 1770 |
60 | 3720 |
61 | 0 |
62 | 0 |
63 | 0 |
64 | 0 |
65 | 2145 |
66 | 4488 |
[0,2,6,4,15,48,0,0,45,120,66,168,0,0,120,288,153, 360,0,0,231,528,0,0,0,0,378,840,435,960,0,0,0,0, 630,1368,0,0,780,1680,861,1848,0,0,1035,2208,0,0, 0,0,1326,2808,0,0,0,0,1653,3480,1770,3720,0,0,0,0, 2145,4488] |