A188481 - cp's OEIS frontend

A188481 Riordan matrix (1/(1-4x),(1-sqrt(1-4x))/(2*sqrt(1-4x))).

n	a(n)
0	1
1	4
2	1
3	16
4	7
5	1
6	64
7	38
8	10
9	1
10	256
11	187
12	69
13	13
14	1
15	1024
16	874
17	406
18	109
19	16
20	1
21	4096
22	3958
23	2186
24	748
25	158
26	19
27	1
28	16384
29	17548
30	11124
31	4570
32	1240
33	216
34	22
35	1
36	65536
37	76627
38	54445
39	25879
40	8485
41	1909
42	283
43	25
44	1
45	262144
46	330818
47	259006
48	138917
49	52984
50	14471
51	2782
52	359
53	28
54	1

[1, 4, 1, 16, 7, 1, 64, 38, 10, 1, 256, 187, 69, 13, 1, 1024, 874, 406, 109, 16, 1, 4096, 3958, 2186, 748, 158, 19, 1, 16384, 17548, 11124, 4570, 1240, 216, 22, 1, 65536, 76627, 54445, 25879, 8485, 1909, 283, 25, 1, 262144, 330818, 259006, 138917, 52984, 14471, 2782, 359, 28, 1]

cp's OEIS Frontend

A188481 Riordan matrix (1/(1-4x),(1-sqrt(1-4x))/(2*sqrt(1-4x))).

Table of values

List of values