A113066 - cp's OEIS frontend

A113066 Expansion of (1 + x)^2/((1 + x + x^2)(1 + 3x + x^2)).

n	a(n)
0	1
1	-2
2	4
3	-10
4	27
5	-72
6	189
7	-494
8	1292
9	-3382
10	8855
11	-23184
12	60697
13	-158906
14	416020
15	-1089154
16	2851443
17	-7465176
18	19544085
19	-51167078
20	133957148
21	-350704366
22	918155951
23	-2403763488
24	6293134513
25	-16475640050
26	43133785636
27	-112925716858
28	295643364939
29	-774004377960

[1, -2, 4, -10, 27, -72, 189, -494, 1292, -3382, 8855, -23184, 60697, -158906, 416020, -1089154, 2851443, -7465176, 19544085, -51167078, 133957148, -350704366, 918155951, -2403763488, 6293134513, -16475640050, 43133785636, -112925716858, 295643364939, -774004377960]

cp's OEIS Frontend

A113066 Expansion of (1 + x)^2/((1 + x + x^2)(1 + 3x + x^2)).

Table of values

List of values

cp's OEIS Frontend

A113066 Expansion of (1 + x)^2/((1 + x + x^2)*(1 + 3*x + x^2)).

Table of values

List of values

A113066 Expansion of (1 + x)^2/((1 + x + x^2)(1 + 3x + x^2)).