A363386 - cp's OEIS frontend

A363386 G.f. A(x) satisfies: A(x) = x + x^2 * exp( Sum_{k>=1} (-1)^(k+1) * A(x^k)^2 / k ).

n	a(n)
1	1
2	1
3	0
4	1
5	2
6	1
7	4
8	8
9	10
10	22
11	50
12	77
13	160
14	343
15	622
16	1250
17	2648
18	5127
19	10364
20	21685
21	43594
22	88907
23	185458
24	380113
25	782902
26	1633841
27	3387444
28	7033401
29	14716304
30	30734066
31	64228198
32	134824862
33	283040684
34	594516622
35	1252151812
36	2639220817
37	5566237724
38	11760037378

[1, 1, 0, 1, 2, 1, 4, 8, 10, 22, 50, 77, 160, 343, 622, 1250, 2648, 5127, 10364, 21685, 43594, 88907, 185458, 380113, 782902, 1633841, 3387444, 7033401, 14716304, 30734066, 64228198, 134824862, 283040684, 594516622, 1252151812, 2639220817, 5566237724, 11760037378]

cp's OEIS Frontend

A363386 G.f. A(x) satisfies: A(x) = x + x^2 * exp( Sum_{k>=1} (-1)^(k+1) * A(x^k)^2 / k ).

Table of values

List of values