A372139 - cp's OEIS frontend

A372139 G.f. A(x) satisfies A(x) = 1/( 1 - x * (1 + 4x)^(1/2) A(x)^2 ).

n	a(n)
0	1
1	1
2	5
3	22
4	131
5	775
6	5018
7	33066
8	225915
9	1569663
10	11114665
11	79715150
12	578603008
13	4239698240
14	31329174328
15	233166912152
16	1746351112863
17	13152340002195
18	99545267265903
19	756752801436930
20	5775810585852675
21	44241685802126865
22	339991810347999194

[1, 1, 5, 22, 131, 775, 5018, 33066, 225915, 1569663, 11114665, 79715150, 578603008, 4239698240, 31329174328, 233166912152, 1746351112863, 13152340002195, 99545267265903, 756752801436930, 5775810585852675, 44241685802126865, 339991810347999194]

cp's OEIS Frontend

A372139 G.f. A(x) satisfies A(x) = 1/( 1 - x * (1 + 4x)^(1/2) A(x)^2 ).

Table of values

List of values

cp's OEIS Frontend

A372139 G.f. A(x) satisfies A(x) = 1/( 1 - x * (1 + 4*x)^(1/2) * A(x)^2 ).

Table of values

List of values

A372139 G.f. A(x) satisfies A(x) = 1/( 1 - x * (1 + 4x)^(1/2) A(x)^2 ).