A203266 - cp's OEIS frontend

A203266 G.f.: A(x) = exp( Sum_{n>=1} G_n(x^n)^2 * x^n/n ) such that G_n(x^n) = Product_{k=0..n-1} A(u^k*x) where u is an n-th root of unity.

n	a(n)
0	1
1	1
2	3
3	10
4	43
5	172
6	852
7	3719
8	19290
9	90469
10	481825
11	2295973
12	12812880
13	62122518
14	346770241
15	1744884177
16	9830723932
17	49268101457
18	285020577850
19	1438021808125
20	8300553742452
21	42955378420263
22	247456097485363
23	1271978597532857
24	7520668963944205
25	38700952324615078

[1, 1, 3, 10, 43, 172, 852, 3719, 19290, 90469, 481825, 2295973, 12812880, 62122518, 346770241, 1744884177, 9830723932, 49268101457, 285020577850, 1438021808125, 8300553742452, 42955378420263, 247456097485363, 1271978597532857, 7520668963944205, 38700952324615078]

cp's OEIS Frontend

A203266 G.f.: A(x) = exp( Sum_{n>=1} G_n(x^n)^2 * x^n/n ) such that G_n(x^n) = Product_{k=0..n-1} A(u^k*x) where u is an n-th root of unity.

Table of values

List of values