n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 1 |
3 | 6 |
4 | 4 |
5 | 1 |
6 | 20 |
7 | 15 |
8 | 6 |
9 | 1 |
10 | 70 |
11 | 56 |
12 | 28 |
13 | 8 |
14 | 1 |
15 | 252 |
16 | 210 |
17 | 120 |
18 | 45 |
19 | 10 |
20 | 1 |
21 | 924 |
22 | 792 |
23 | 495 |
24 | 220 |
25 | 66 |
26 | 12 |
27 | 1 |
28 | 3432 |
29 | 3003 |
30 | 2002 |
31 | 1001 |
32 | 364 |
33 | 91 |
34 | 14 |
35 | 1 |
36 | 12870 |
37 | 11440 |
38 | 8008 |
39 | 4368 |
40 | 1820 |
41 | 560 |
42 | 120 |
43 | 16 |
44 | 1 |
45 | 48620 |
46 | 43758 |
47 | 31824 |
48 | 18564 |
49 | 8568 |
50 | 3060 |
51 | 816 |
52 | 153 |
53 | 18 |
54 | 1 |
55 | 184756 |
56 | 167960 |
[1,2,1,6,4,1,20,15,6,1,70,56,28,8,1,252,210,120, 45,10,1,924,792,495,220,66,12,1,3432,3003,2002, 1001,364,91,14,1,12870,11440,8008,4368,1820,560, 120,16,1,48620,43758,31824,18564,8568,3060,816, 153,18,1,184756,167960] |