A117184 - cp's OEIS frontend

A117184 Riordan array ((1+x)c(x^2)/sqrt(1-4x^2),xc(x^2)), c(x) the g.f. of A000108.

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

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

cp's OEIS Frontend

A117184 Riordan array ((1+x)c(x^2)/sqrt(1-4x^2),xc(x^2)), c(x) the g.f. of A000108.

Table of values

List of values

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

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

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