A120916 - cp's OEIS frontend

A120916 G.f. satisfies: A(x) = C(2x)A(x^3C(2x)^4), where C(x) is the g.f. of the Catalan numbers (A000108).

n	a(n)
0	1
1	2
2	8
3	42
4	244
5	1504
6	9656
7	63856
8	431872
9	2972778
10	20756036
11	146627648
12	1046060836
13	7525452296
14	54530660832
15	397628393728
16	2915496099136
17	21481907631872
18	158975372309176
19	1181109256858096
20	8806197969093184

[1, 2, 8, 42, 244, 1504, 9656, 63856, 431872, 2972778, 20756036, 146627648, 1046060836, 7525452296, 54530660832, 397628393728, 2915496099136, 21481907631872, 158975372309176, 1181109256858096, 8806197969093184]

cp's OEIS Frontend

A120916 G.f. satisfies: A(x) = C(2x)A(x^3C(2x)^4), where C(x) is the g.f. of the Catalan numbers (A000108).

Table of values

List of values

cp's OEIS Frontend

A120916 G.f. satisfies: A(x) = C(2x)*A(x^3*C(2x)^4), where C(x) is the g.f. of the Catalan numbers (A000108).

Table of values

List of values

A120916 G.f. satisfies: A(x) = C(2x)A(x^3C(2x)^4), where C(x) is the g.f. of the Catalan numbers (A000108).