A192425 - cp's OEIS frontend

A192425 Coefficient of x in the reduction by x^2 -> x+2 of the polynomial p(n,x) defined below in Comments.

n	a(n)
0	0
1	1
2	1
3	6
4	9
5	31
6	60
7	169
8	369
9	954
10	2201
11	5479
12	12960
13	31721
14	75881
15	184326
16	443169
17	1072871
18	2585340
19	6249329
20	15074649
21	36413754
22	87877681
23	212208719
24	512231040
25	1236774481
26	2985612241
27	7208270406
28	17401713849
29	42012408751

[0, 1, 1, 6, 9, 31, 60, 169, 369, 954, 2201, 5479, 12960, 31721, 75881, 184326, 443169, 1072871, 2585340, 6249329, 15074649, 36413754, 87877681, 212208719, 512231040, 1236774481, 2985612241, 7208270406, 17401713849, 42012408751]

cp's OEIS Frontend

A192425 Coefficient of x in the reduction by x^2 -> x+2 of the polynomial p(n,x) defined below in Comments.

Table of values

List of values