A374570 - cp's OEIS frontend

A374570 Expansion of g.f. A(x) satisfying A(x)^2 = A( A(x)*C(x) ), where C(x) = x + C(x)^2 is the Catalan function (A000108).

n	a(n)
1	1
2	1
3	3
4	8
5	27
6	90
7	320
8	1152
9	4257
10	15934
11	60486
12	231894
13	897242
14	3497638
15	13725678
16	54174286
17	214923493
18	856560918
19	3427838222
20	13768875142
21	55494305328
22	224359469870
23	909656736876
24	3697874061870
25	15068978724200
26	61545704828266
27	251899370771284
28	1033027441769384

[1, 1, 3, 8, 27, 90, 320, 1152, 4257, 15934, 60486, 231894, 897242, 3497638, 13725678, 54174286, 214923493, 856560918, 3427838222, 13768875142, 55494305328, 224359469870, 909656736876, 3697874061870, 15068978724200, 61545704828266, 251899370771284, 1033027441769384]

cp's OEIS Frontend

A374570 Expansion of g.f. A(x) satisfying A(x)^2 = A( A(x)*C(x) ), where C(x) = x + C(x)^2 is the Catalan function (A000108).

Table of values

List of values