n | a(n) |
---|---|
1 | 2 |
2 | 6 |
3 | 20 |
4 | 70 |
5 | 252 |
6 | 420 |
7 | 552 |
8 | 0 |
9 | 1100 |
10 | 1144 |
11 | 0 |
12 | 1456 |
13 | 1400 |
14 | 2040 |
15 | 2448 |
16 | 0 |
17 | 3420 |
18 | 0 |
19 | 0 |
20 | 0 |
21 | 6072 |
22 | 5520 |
23 | 0 |
24 | 5850 |
25 | 13104 |
26 | 0 |
27 | 12992 |
28 | 17980 |
29 | 22320 |
30 | 27280 |
31 | 5984 |
32 | 7854 |
33 | 7140 |
34 | 15540 |
35 | 0 |
36 | 36556 |
37 | 13832 |
38 | 0 |
39 | 45920 |
40 | 24682 |
41 | 0 |
42 | 0 |
43 | 0 |
44 | 0 |
45 | 51888 |
46 | 0 |
47 | 23520 |
48 | 0 |
49 | 0 |
50 | 0 |
51 | 0 |
52 | 94446 |
53 | 0 |
54 | 0 |
55 | 0 |
[2,6,20,70,252,420,552,0,1100,1144,0,1456,1400, 2040,2448,0,3420,0,0,0,6072,5520,0,5850,13104,0, 12992,17980,22320,27280,5984,7854,7140,15540,0, 36556,13832,0,45920,24682,0,0,0,0,51888,0,23520,0, 0,0,0,94446,0,0,0] |