A020921 - OEIS

A020921 as a simple table

n	a(n)
0	1
1	1
2	1
3	0
4	1
5	1
6	0
7	2
8	3
9	1
10	0
11	2
12	5
13	4
14	1
15	0
16	4
17	10
18	10
19	5
20	1
21	0
22	2
23	11
24	19
25	15
26	6
27	1
28	0
29	6
30	21
31	35
32	35
33	21
34	7
35	1
36	0
37	4
38	22
39	52
40	69
41	56
42	28
43	8
44	1
45	0
46	6
47	33
48	83
49	126
50	126
51	84
52	36
53	9
54	1
55	0
56	4
57	34
58	110
59	205
60	251
61	210
62	120
63	45
64	10
65	1
66	0
67	10
68	55
69	165
70	330
71	462
72	462
73	330
74	165
75	55
76	11

[1,1,1,0,1,1,0,2,3,1,0,2,5,4,1,0,4,10,10,5,1,0,2, 11,19,15,6,1,0,6,21,35,35,21,7,1,0,4,22,52,69,56, 28,8,1,0,6,33,83,126,126,84,36,9,1,0,4,34,110,205, 251,210,120,45,10,1,0,10,55,165,330,462,462,330, 165,55,11]

n	a(n)
0	1
1	1
2	1
3	0
4	1
5	1
6	0
7	2
8	3
9	1
10	0
11	2
12	5
13	4
14	1
15	0
16	4
17	10
18	10
19	5
20	1
21	0
22	2
23	11
24	19
25	15
26	6
27	1
28	0
29	6
30	21
31	35
32	35
33	21
34	7
35	1
36	0
37	4
38	22
39	52
40	69
41	56
42	28
43	8
44	1
45	0
46	6
47	33
48	83
49	126
50	126
51	84
52	36
53	9
54	1
55	0
56	4
57	34
58	110
59	205
60	251
61	210
62	120
63	45
64	10
65	1
66	0
67	10
68	55
69	165
70	330
71	462
72	462
73	330
74	165
75	55
76	11

n	a(n)
0	1
1	1
2	1
3	0
4	1
5	1
6	0
7	2
8	3
9	1
10	0
11	2
12	5
13	4
14	1
15	0
16	4
17	10
18	10
19	5
20	1
21	0
22	2
23	11
24	19
25	15
26	6
27	1
28	0
29	6
30	21
31	35
32	35
33	21
34	7
35	1
36	0
37	4
38	22
39	52
40	69
41	56
42	28
43	8
44	1
45	0
46	6
47	33
48	83
49	126
50	126
51	84
52	36
53	9
54	1
55	0
56	4
57	34
58	110
59	205
60	251
61	210
62	120
63	45
64	10
65	1
66	0
67	10
68	55
69	165
70	330
71	462
72	462
73	330
74	165
75	55
76	11

n	a(n)
0	1
1	1
2	1
3	0
4	1
5	1
6	0
7	2
8	3
9	1
10	0
11	2
12	5
13	4
14	1
15	0
16	4
17	10
18	10
19	5
20	1
21	0
22	2
23	11
24	19
25	15
26	6
27	1
28	0
29	6
30	21
31	35
32	35
33	21
34	7
35	1
36	0
37	4
38	22
39	52
40	69
41	56
42	28
43	8
44	1
45	0
46	6
47	33
48	83
49	126
50	126
51	84
52	36
53	9
54	1
55	0
56	4
57	34
58	110
59	205
60	251
61	210
62	120
63	45
64	10
65	1
66	0
67	10
68	55
69	165
70	330
71	462
72	462
73	330
74	165
75	55
76	11