A192471 - cp's OEIS frontend

A192471 Constant term of the reduction by x^2->x+1 of the polynomial p(n,x)=1+x^n+x^(2n+1).

n	a(n)
1	2
2	5
3	10
4	24
5	59
6	150
7	386
8	1001
9	2606
10	6800
11	17767
12	46458
13	121538
14	318045
15	832418
16	2178920
17	5703875
18	14931950
19	39090754
20	102338337
21	267921062
22	701419680
23	1836329615
24	4807555634
25	12586315394
26	32951355125
27	86267692666
28	225851630136

[2, 5, 10, 24, 59, 150, 386, 1001, 2606, 6800, 17767, 46458, 121538, 318045, 832418, 2178920, 5703875, 14931950, 39090754, 102338337, 267921062, 701419680, 1836329615, 4807555634, 12586315394, 32951355125, 86267692666, 225851630136]

cp's OEIS Frontend

A192471 Constant term of the reduction by x^2->x+1 of the polynomial p(n,x)=1+x^n+x^(2n+1).

Table of values

List of values