A256595 - cp's OEIS frontend

A256595 Triangle A074909(n) with 0's as second column.

n	a(n)
0	1
1	1
2	0
3	1
4	0
5	3
6	1
7	0
8	6
9	4
10	1
11	0
12	10
13	10
14	5
15	1
16	0
17	15
18	20
19	15
20	6
21	1
22	0
23	21
24	35
25	35
26	21
27	7
28	1
29	0
30	28
31	56
32	70
33	56
34	28
35	8
36	1
37	0
38	36
39	84
40	126
41	126
42	84
43	36
44	9
45	1
46	0
47	45
48	120
49	210
50	252
51	210
52	120
53	45
54	10
55	1
56	0
57	55
58	165
59	330
60	462
61	462
62	330
63	165
64	55
65	11

[1, 1, 0, 1, 0, 3, 1, 0, 6, 4, 1, 0, 10, 10, 5, 1, 0, 15, 20, 15, 6, 1, 0, 21, 35, 35, 21, 7, 1, 0, 28, 56, 70, 56, 28, 8, 1, 0, 36, 84, 126, 126, 84, 36, 9, 1, 0, 45, 120, 210, 252, 210, 120, 45, 10, 1, 0, 55, 165, 330, 462, 462, 330, 165, 55, 11]

cp's OEIS Frontend

A256595 Triangle A074909(n) with 0's as second column.

Table of values

List of values

n	a(n)
0	1
1	1
2	0
3	1
4	0
5	3
6	1
7	0
8	6
9	4
10	1
11	0
12	10
13	10
14	5
15	1
16	0
17	15
18	20
19	15
20	6
21	1
22	0
23	21
24	35
25	35
26	21
27	7
28	1
29	0
30	28
31	56
32	70
33	56
34	28
35	8
36	1
37	0
38	36
39	84
40	126
41	126
42	84
43	36
44	9
45	1
46	0
47	45
48	120
49	210
50	252
51	210
52	120
53	45
54	10
55	1
56	0
57	55
58	165
59	330
60	462
61	462
62	330
63	165
64	55
65	11

n	a(n)
0	1
1	1
2	0
3	1
4	0
5	3
6	1
7	0
8	6
9	4
10	1
11	0
12	10
13	10
14	5
15	1
16	0
17	15
18	20
19	15
20	6
21	1
22	0
23	21
24	35
25	35
26	21
27	7
28	1
29	0
30	28
31	56
32	70
33	56
34	28
35	8
36	1
37	0
38	36
39	84
40	126
41	126
42	84
43	36
44	9
45	1
46	0
47	45
48	120
49	210
50	252
51	210
52	120
53	45
54	10
55	1
56	0
57	55
58	165
59	330
60	462
61	462
62	330
63	165
64	55
65	11

n	a(n)
0	1
1	1
2	0
3	1
4	0
5	3
6	1
7	0
8	6
9	4
10	1
11	0
12	10
13	10
14	5
15	1
16	0
17	15
18	20
19	15
20	6
21	1
22	0
23	21
24	35
25	35
26	21
27	7
28	1
29	0
30	28
31	56
32	70
33	56
34	28
35	8
36	1
37	0
38	36
39	84
40	126
41	126
42	84
43	36
44	9
45	1
46	0
47	45
48	120
49	210
50	252
51	210
52	120
53	45
54	10
55	1
56	0
57	55
58	165
59	330
60	462
61	462
62	330
63	165
64	55
65	11