A119371 - cp's OEIS frontend

A119371 G.f. satisfies: A(x) = (1+x) - x(4+x)A(x) + x(3+2x)*A(x)^2.

n	a(n)
0	1
1	0
2	1
3	2
4	7
5	23
6	81
7	293
8	1087
9	4110
10	15783
11	61387
12	241329
13	957400
14	3828055
15	15410651
16	62410871
17	254095382
18	1039394147
19	4269718110
20	17606507789
21	72852976317
22	302403773303
23	1258855723796
24	5254253027485
25	21983753239135

[1, 0, 1, 2, 7, 23, 81, 293, 1087, 4110, 15783, 61387, 241329, 957400, 3828055, 15410651, 62410871, 254095382, 1039394147, 4269718110, 17606507789, 72852976317, 302403773303, 1258855723796, 5254253027485, 21983753239135]

cp's OEIS Frontend

A119371 G.f. satisfies: A(x) = (1+x) - x(4+x)A(x) + x(3+2x)*A(x)^2.

Table of values

List of values

cp's OEIS Frontend

A119371 G.f. satisfies: A(x) = (1+x) - x*(4+x)*A(x) + x*(3+2*x)*A(x)^2.

Table of values

List of values

A119371 G.f. satisfies: A(x) = (1+x) - x(4+x)A(x) + x(3+2x)*A(x)^2.