A192464 - cp's OEIS frontend

A192464 Constant term of the reduction by x^2->x+1 of the polynomial p(n,x) = 1 + x^n + x^(2n).

n	a(n)
1	2
2	4
3	7
4	16
5	38
6	95
7	242
8	624
9	1619
10	4216
11	11002
12	28747
13	75170
14	196652
15	514607
16	1346880
17	3525566
18	9229063
19	24160402
20	63250168
21	165586907
22	433505384
23	1134920882
24	2971243731
25	7778788418
26	20365086100
27	53316412567
28	139584058864
29	365435613974
30	956722540271

[2, 4, 7, 16, 38, 95, 242, 624, 1619, 4216, 11002, 28747, 75170, 196652, 514607, 1346880, 3525566, 9229063, 24160402, 63250168, 165586907, 433505384, 1134920882, 2971243731, 7778788418, 20365086100, 53316412567, 139584058864, 365435613974, 956722540271]

cp's OEIS Frontend

A192464 Constant term of the reduction by x^2->x+1 of the polynomial p(n,x) = 1 + x^n + x^(2n).

Table of values

List of values