A153298 - cp's OEIS frontend

A153298 G.f.: A(x) = F(xG(x)^3)^2 = F(G(x)-1)^2 where F(x) = G(x/F(x)) = 1 + xF(x)^2 is the g.f. of A000108 (Catalan) and G(x) = F(xG(x)) = 1 + xG(x)^3 is the g.f. of A001764.

n	a(n)
0	1
1	2
2	11
3	68
4	443
5	2974
6	20361
7	141356
8	991738
9	7015814
10	49967892
11	357896120
12	2575844046
13	18616823352
14	135051785186
15	982949932092
16	7175591019313
17	52524480778590
18	385429134781530
19	2834791998208500
20	20893844524709649

[1, 2, 11, 68, 443, 2974, 20361, 141356, 991738, 7015814, 49967892, 357896120, 2575844046, 18616823352, 135051785186, 982949932092, 7175591019313, 52524480778590, 385429134781530, 2834791998208500, 20893844524709649]

cp's OEIS Frontend

A153298 G.f.: A(x) = F(xG(x)^3)^2 = F(G(x)-1)^2 where F(x) = G(x/F(x)) = 1 + xF(x)^2 is the g.f. of A000108 (Catalan) and G(x) = F(xG(x)) = 1 + xG(x)^3 is the g.f. of A001764.

Table of values

List of values

cp's OEIS Frontend

A153298 G.f.: A(x) = F(x*G(x)^3)^2 = F(G(x)-1)^2 where F(x) = G(x/F(x)) = 1 + x*F(x)^2 is the g.f. of A000108 (Catalan) and G(x) = F(x*G(x)) = 1 + x*G(x)^3 is the g.f. of A001764.

Table of values

List of values

A153298 G.f.: A(x) = F(xG(x)^3)^2 = F(G(x)-1)^2 where F(x) = G(x/F(x)) = 1 + xF(x)^2 is the g.f. of A000108 (Catalan) and G(x) = F(xG(x)) = 1 + xG(x)^3 is the g.f. of A001764.