A153392 - cp's OEIS frontend

A153392 G.f.: A(x) = F(xG(x)^3) where F(x) = G(xF(x)) = 1 + xF(x)^3 is the g.f. of A001764 and G(x) = F(x/G(x)) = 1 + xG(x)^2 is the g.f. of A000108 (Catalan).

n	a(n)
0	1
1	1
2	6
3	39
4	272
5	2001
6	15333
7	121266
8	983274
9	8133564
10	68382628
11	582700485
12	5021538753
13	43690059657
14	383263396836
15	3386175566418
16	30104702903914
17	269125162789764
18	2417709649413102
19	21815252320257250
20	197620659225838530

[1, 1, 6, 39, 272, 2001, 15333, 121266, 983274, 8133564, 68382628, 582700485, 5021538753, 43690059657, 383263396836, 3386175566418, 30104702903914, 269125162789764, 2417709649413102, 21815252320257250, 197620659225838530]

cp's OEIS Frontend

A153392 G.f.: A(x) = F(xG(x)^3) where F(x) = G(xF(x)) = 1 + xF(x)^3 is the g.f. of A001764 and G(x) = F(x/G(x)) = 1 + xG(x)^2 is the g.f. of A000108 (Catalan).

Table of values

List of values

cp's OEIS Frontend

A153392 G.f.: A(x) = F(x*G(x)^3) where F(x) = G(x*F(x)) = 1 + x*F(x)^3 is the g.f. of A001764 and G(x) = F(x/G(x)) = 1 + x*G(x)^2 is the g.f. of A000108 (Catalan).

Table of values

List of values

A153392 G.f.: A(x) = F(xG(x)^3) where F(x) = G(xF(x)) = 1 + xF(x)^3 is the g.f. of A001764 and G(x) = F(x/G(x)) = 1 + xG(x)^2 is the g.f. of A000108 (Catalan).