A375439 - cp's OEIS frontend

A375439 Expansion of g.f. A(x) satisfying A(x) = x + x^2 + (2*A(x)^3 + A(x^3))/3.

n	a(n)
1	1
2	1
3	1
4	2
5	4
6	9
7	20
8	48
9	117
10	290
11	734
12	1880
13	4868
14	12730
15	33556
16	89072
17	237904
18	638873
19	1723930
20	4672008
21	12710904
22	34703894
23	95054188
24	261116816
25	719223064
26	1985934212
27	5496123033
28	15242821108
29	42357113994
30	117918233704
31	328833828334
32	918470764376
33	2569238134248
34	7197046596440

[1, 1, 1, 2, 4, 9, 20, 48, 117, 290, 734, 1880, 4868, 12730, 33556, 89072, 237904, 638873, 1723930, 4672008, 12710904, 34703894, 95054188, 261116816, 719223064, 1985934212, 5496123033, 15242821108, 42357113994, 117918233704, 328833828334, 918470764376, 2569238134248, 7197046596440]

cp's OEIS Frontend

A375439 Expansion of g.f. A(x) satisfying A(x) = x + x^2 + (2*A(x)^3 + A(x^3))/3.

Table of values

List of values