A213221 - cp's OEIS frontend

A213221 Riordan array (f(x), x*g(x)) where f(x) is the g.f. of A157004 and g(x) is the g.f. of A157003.

n	a(n)
0	1
1	2
2	1
3	6
4	3
5	1
6	18
7	10
8	4
9	1
10	58
11	32
12	15
13	5
14	1
15	192
16	106
17	52
18	21
19	6
20	1
21	650
22	357
23	180
24	79
25	28
26	7
27	1
28	2232
29	1222
30	624
31	288
32	114
33	36
34	8
35	1
36	7746
37	4230
38	2178
39	1035
40	439
41	158
42	45
43	9
44	1
45	27096
46	14770
47	7648
48	3706
49	1642
50	643
51	212
52	55
53	10
54	1

[1, 2, 1, 6, 3, 1, 18, 10, 4, 1, 58, 32, 15, 5, 1, 192, 106, 52, 21, 6, 1, 650, 357, 180, 79, 28, 7, 1, 2232, 1222, 624, 288, 114, 36, 8, 1, 7746, 4230, 2178, 1035, 439, 158, 45, 9, 1, 27096, 14770, 7648, 3706, 1642, 643, 212, 55, 10, 1]

cp's OEIS Frontend

A213221 Riordan array (f(x), x*g(x)) where f(x) is the g.f. of A157004 and g(x) is the g.f. of A157003.

Table of values

List of values