A137953 - cp's OEIS frontend

A137953 G.f. satisfies A(x) = 1 + x(1 + xA(x)^2)^3.

n	a(n)
0	1
1	1
2	3
3	9
4	34
5	132
6	546
7	2327
8	10191
9	45534
10	206788
11	951723
12	4429182
13	20808186
14	98550468
15	470038119
16	2255684699
17	10883852112
18	52769785320
19	256960840946
20	1256147650818
21	6162349332204
22	30328107189312
23	149698391878458

[1, 1, 3, 9, 34, 132, 546, 2327, 10191, 45534, 206788, 951723, 4429182, 20808186, 98550468, 470038119, 2255684699, 10883852112, 52769785320, 256960840946, 1256147650818, 6162349332204, 30328107189312, 149698391878458]

cp's OEIS Frontend

A137953 G.f. satisfies A(x) = 1 + x(1 + xA(x)^2)^3.

Table of values

List of values

cp's OEIS Frontend

A137953 G.f. satisfies A(x) = 1 + x*(1 + x*A(x)^2)^3.

Table of values

List of values

A137953 G.f. satisfies A(x) = 1 + x(1 + xA(x)^2)^3.