A165253 - OEIS

A165253 as a simple table

n	a(n)
0	1
1	1
2	0
3	1
4	1
5	0
6	1
7	3
8	1
9	0
10	1
11	6
12	5
13	1
14	0
15	1
16	10
17	15
18	7
19	1
20	0
21	1
22	15
23	35
24	28
25	9
26	1
27	0
28	1
29	21
30	70
31	84
32	45
33	11
34	1
35	0
36	1
37	28
38	126
39	210
40	165
41	66
42	13
43	1
44	0
45	1
46	36
47	210
48	462
49	495
50	286
51	91
52	15
53	1
54	0
55	1
56	45
57	330
58	924
59	1287
60	1001
61	455
62	120
63	17
64	1
65	0
66	1
67	55
68	495
69	1716
70	3003
71	3003
72	1820
73	680

[1,1,0,1,1,0,1,3,1,0,1,6,5,1,0,1,10,15,7,1,0,1,15, 35,28,9,1,0,1,21,70,84,45,11,1,0,1,28,126,210,165, 66,13,1,0,1,36,210,462,495,286,91,15,1,0,1,45,330, 924,1287,1001,455,120,17,1,0,1,55,495,1716,3003, 3003,1820,680]