A371609 - cp's OEIS frontend

A371609 G.f. satisfies A(x) = ( 1 + x * (1 + x*A(x)^2)^2 )^2.

n	a(n)
0	1
1	2
2	5
3	22
4	94
5	452
6	2253
7	11640
8	61732
9	333924
10	1836052
11	10229434
12	57628078
13	327711260
14	1878658490
15	10845298128
16	62993496588
17	367874945560
18	2158717741928
19	12722258713956
20	75269561054412
21	446891212180568
22	2661788871400197
23	15900644226590952
24	95240143776976144

[1, 2, 5, 22, 94, 452, 2253, 11640, 61732, 333924, 1836052, 10229434, 57628078, 327711260, 1878658490, 10845298128, 62993496588, 367874945560, 2158717741928, 12722258713956, 75269561054412, 446891212180568, 2661788871400197, 15900644226590952, 95240143776976144]

cp's OEIS Frontend

A371609 G.f. satisfies A(x) = ( 1 + x * (1 + x*A(x)^2)^2 )^2.

Table of values

List of values