A106187 - OEIS

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A106187 as a simple table

n	a(n)
0	1
1	2
2	1
3	6
4	2
5	1
6	20
7	6
8	2
9	1
10	70
11	20
12	6
13	2
14	1
15	252
16	70
17	20
18	6
19	2
20	1
21	924
22	252
23	70
24	20
25	6
26	2
27	1
28	3432
29	924
30	252
31	70
32	20
33	6
34	2
35	1
36	12870
37	3432
38	924
39	252
40	70
41	20
42	6
43	2
44	1
45	48620
46	12870
47	3432
48	924
49	252
50	70
51	20
52	6
53	2
54	1
55	184756
56	48620
57	12870
58	3432
59	924
60	252
61	70
62	20
63	6
64	2
65	1

[1,2,1,6,2,1,20,6,2,1,70,20,6,2,1,252,70,20,6,2,1, 924,252,70,20,6,2,1,3432,924,252,70,20,6,2,1, 12870,3432,924,252,70,20,6,2,1,48620,12870,3432, 924,252,70,20,6,2,1,184756,48620,12870,3432,924, 252,70,20,6,2,1]