A187119 - cp's OEIS frontend

A187119 G.f. A(x) satisfies: [x^(m+2)] A(F^m(x)) = 0 for m>0 where F^m(x) denotes the m-th iteration of F(x) = x+x^2 with F^0(x)=x.

n	a(n)
2	1
3	-2
4	4
5	-12
6	36
7	-140
8	519
9	-2632
10	11776
11	-82020
12	426990
13	-4149112
14	22719260
15	-309921456
16	1487214652
17	-31477804596
18	82495148888
19	-4227929653508
20	-7155535440434
21	-767565126075852
22	-6245080462329816
23	-194907866415800464

[1, -2, 4, -12, 36, -140, 519, -2632, 11776, -82020, 426990, -4149112, 22719260, -309921456, 1487214652, -31477804596, 82495148888, -4227929653508, -7155535440434, -767565126075852, -6245080462329816, -194907866415800464]

cp's OEIS Frontend

A187119 G.f. A(x) satisfies: [x^(m+2)] A(F^m(x)) = 0 for m>0 where F^m(x) denotes the m-th iteration of F(x) = x+x^2 with F^0(x)=x.

Table of values

List of values