A192423 - cp's OEIS frontend

A192423 Constant term of the reduction by x^2 -> x+2 of the polynomial p(n,x) defined below in Comments.

n	a(n)
0	2
1	0
2	4
3	2
4	16
5	20
6	78
7	140
8	416
9	878
10	2324
11	5280
12	13282
13	31200
14	76724
15	182962
16	445376
17	1069300
18	2591118
19	6239980
20	15089776
21	36389278
22	87917284
23	212144640
24	512334722
25	1236606720
26	2985883684
27	7207831202
28	17402424496
29	42011258900

[2, 0, 4, 2, 16, 20, 78, 140, 416, 878, 2324, 5280, 13282, 31200, 76724, 182962, 445376, 1069300, 2591118, 6239980, 15089776, 36389278, 87917284, 212144640, 512334722, 1236606720, 2985883684, 7207831202, 17402424496, 42011258900]

cp's OEIS Frontend

A192423 Constant term of the reduction by x^2 -> x+2 of the polynomial p(n,x) defined below in Comments.

Table of values

List of values