A187009 - cp's OEIS frontend

A187009 G.f. A(x) satisfies: [x^(n+1)] A(F^n(x)) = 0 for n>0 where F^n(x) denotes the n-th iteration of F(x) = x+x^2 with F^0(x)=x.

n	a(n)
1	1
2	-1
3	2
4	-6
5	20
6	-80
7	348
8	-1778
9	9892
10	-64392
11	449596
12	-3609782
13	30152616
14	-284037468
15	2694480888
16	-28592860322
17	295151311376
18	-3440953545088
19	37165311149276
20	-471576198145144
21	5062381083026352
22	-71104461751595892

[1, -1, 2, -6, 20, -80, 348, -1778, 9892, -64392, 449596, -3609782, 30152616, -284037468, 2694480888, -28592860322, 295151311376, -3440953545088, 37165311149276, -471576198145144, 5062381083026352, -71104461751595892]

cp's OEIS Frontend

A187009 G.f. A(x) satisfies: [x^(n+1)] A(F^n(x)) = 0 for n>0 where F^n(x) denotes the n-th iteration of F(x) = x+x^2 with F^0(x)=x.

Table of values

List of values