A247364 - cp's OEIS frontend

A247364 Riordan array (f(x), (f(x)-1)/f(x)) where f(x) = (1 + x - sqrt(1 - 2x - 3x^2))/(2*x).

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	1
6	2
7	2
8	1
9	1
10	4
11	4
12	3
13	1
14	1
15	9
16	9
17	6
18	4
19	1
20	1
21	21
22	21
23	15
24	8
25	5
26	1
27	1
28	51
29	51
30	36
31	22
32	10
33	6
34	1
35	1
36	127
37	127
38	91
39	54
40	30
41	12
42	7
43	1
44	1
45	323
46	323
47	232
48	142
49	75
50	39
51	14
52	8
53	1
54	1
55	835
56	835
57	603
58	370
59	205
60	99
61	49
62	16
63	9
64	1
65	1
66	2188
67	2188
68	1585
69	983

[1, 1, 1, 1, 1, 1, 2, 2, 1, 1, 4, 4, 3, 1, 1, 9, 9, 6, 4, 1, 1, 21, 21, 15, 8, 5, 1, 1, 51, 51, 36, 22, 10, 6, 1, 1, 127, 127, 91, 54, 30, 12, 7, 1, 1, 323, 323, 232, 142, 75, 39, 14, 8, 1, 1, 835, 835, 603, 370, 205, 99, 49, 16, 9, 1, 1, 2188, 2188, 1585, 983]

cp's OEIS Frontend

A247364 Riordan array (f(x), (f(x)-1)/f(x)) where f(x) = (1 + x - sqrt(1 - 2x - 3x^2))/(2*x).

Table of values

List of values