A192472 - cp's OEIS frontend

A192472 Constant term of the reduction by x^2->x+1 of the polynomial p(n,x)=1+x^n+x^(2n+2).

n	a(n)
1	3
2	7
3	15
4	37
5	93
6	239
7	619
8	1611
9	4203
10	10981
11	28713
12	75115
13	196563
14	514463
15	1346647
16	3525189
17	9228453
18	24159415
19	63248571
20	165584323
21	433501203
22	1134914117
23	2971232785
24	7778770707
25	20365057443
26	53316366199
27	139583983839
28	365435492581

[3, 7, 15, 37, 93, 239, 619, 1611, 4203, 10981, 28713, 75115, 196563, 514463, 1346647, 3525189, 9228453, 24159415, 63248571, 165584323, 433501203, 1134914117, 2971232785, 7778770707, 20365057443, 53316366199, 139583983839, 365435492581]

cp's OEIS Frontend

A192472 Constant term of the reduction by x^2->x+1 of the polynomial p(n,x)=1+x^n+x^(2n+2).

Table of values

List of values