A157308 - cp's OEIS frontend

A157308 G.f. A(x) satisfies the condition that both A(x) and F(x) = A(x*F(x)) = g.f. of A155585 have zeros for every other coefficient after initial terms; g.f. of dual sequence A157309 satisfies the same condition.

n	a(n)
0	1
1	1
2	-1
3	0
4	3
5	0
6	-38
7	0
8	947
9	0
10	-37394
11	0
12	2120190
13	0
14	-162980012
15	0
16	16330173251
17	0
18	-2070201641498
19	0
20	324240251016266
21	0
22	-61525045423103316
23	0
24	13913915097436287598
25	0
26	-3698477457114061621492
27	0

[1, 1, -1, 0, 3, 0, -38, 0, 947, 0, -37394, 0, 2120190, 0, -162980012, 0, 16330173251, 0, -2070201641498, 0, 324240251016266, 0, -61525045423103316, 0, 13913915097436287598, 0, -3698477457114061621492, 0]

cp's OEIS Frontend

A157308 G.f. A(x) satisfies the condition that both A(x) and F(x) = A(x*F(x)) = g.f. of A155585 have zeros for every other coefficient after initial terms; g.f. of dual sequence A157309 satisfies the same condition.

Table of values

List of values