A192804 - cp's OEIS frontend

A192804 Constant term in the reduction of the polynomial 1+x+x^2+...+x^n by x^3->x^2+x+1. See Comments.

n	a(n)
0	1
1	1
2	1
3	2
4	3
5	5
6	9
7	16
8	29
9	53
10	97
11	178
12	327
13	601
14	1105
15	2032
16	3737
17	6873
18	12641
19	23250
20	42763
21	78653
22	144665
23	266080
24	489397
25	900141
26	1655617
27	3045154
28	5600911
29	10301681
30	18947745
31	34850336
32	64099761
33	117897841
34	216847937
35	398845538

[1, 1, 1, 2, 3, 5, 9, 16, 29, 53, 97, 178, 327, 601, 1105, 2032, 3737, 6873, 12641, 23250, 42763, 78653, 144665, 266080, 489397, 900141, 1655617, 3045154, 5600911, 10301681, 18947745, 34850336, 64099761, 117897841, 216847937, 398845538]

cp's OEIS Frontend

A192804 Constant term in the reduction of the polynomial 1+x+x^2+...+x^n by x^3->x^2+x+1. See Comments.

Table of values

List of values