A126042 - cp's OEIS frontend

A126042 Expansion of f(x^3)/(1-x*f(x^3)), where f(x) is the g.f. of A001764, whose n-th term is binomial(3n,n)/(2n+1).

n	a(n)
0	1
1	1
2	1
3	2
4	3
5	4
6	8
7	13
8	19
9	38
10	64
11	98
12	196
13	337
14	531
15	1062
16	1851
17	2974
18	5948
19	10468
20	17060
21	34120
22	60488
23	99658
24	199316
25	355369
26	590563
27	1181126
28	2115577
29	3540464
30	7080928
31	12731141
32	21430267
33	42860534
34	77306428
35	130771376
36	261542752
37	473018396
38	803538100

[1, 1, 1, 2, 3, 4, 8, 13, 19, 38, 64, 98, 196, 337, 531, 1062, 1851, 2974, 5948, 10468, 17060, 34120, 60488, 99658, 199316, 355369, 590563, 1181126, 2115577, 3540464, 7080928, 12731141, 21430267, 42860534, 77306428, 130771376, 261542752, 473018396, 803538100]

cp's OEIS Frontend

A126042 Expansion of f(x^3)/(1-x*f(x^3)), where f(x) is the g.f. of A001764, whose n-th term is binomial(3n,n)/(2n+1).

Table of values

List of values