A267314 - cp's OEIS frontend

A267314 Expansion of 2x(1 + 2x - x^2)/((1 - x)(1 + x^2)^2).

n	a(n)
0	0
1	2
2	6
3	0
4	-8
5	2
6	14
7	0
8	-16
9	2
10	22
11	0
12	-24
13	2
14	30
15	0
16	-32
17	2
18	38
19	0
20	-40
21	2
22	46
23	0
24	-48
25	2
26	54
27	0
28	-56
29	2
30	62
31	0
32	-64
33	2
34	70
35	0
36	-72
37	2
38	78
39	0
40	-80
41	2
42	86
43	0
44	-88
45	2
46	94
47	0
48	-96
49	2
50	102
51	0
52	-104
53	2
54	110
55	0
56	-112
57	2
58	118
59	0
60	-120
61	2
62	126
63	0
64	-128
65	2
66	134
67	0
68	-136
69	2
70	142
71	0

[0, 2, 6, 0, -8, 2, 14, 0, -16, 2, 22, 0, -24, 2, 30, 0, -32, 2, 38, 0, -40, 2, 46, 0, -48, 2, 54, 0, -56, 2, 62, 0, -64, 2, 70, 0, -72, 2, 78, 0, -80, 2, 86, 0, -88, 2, 94, 0, -96, 2, 102, 0, -104, 2, 110, 0, -112, 2, 118, 0, -120, 2, 126, 0, -128, 2, 134, 0, -136, 2, 142, 0]

cp's OEIS Frontend

A267314 Expansion of 2x(1 + 2x - x^2)/((1 - x)(1 + x^2)^2).

Table of values

List of values

cp's OEIS Frontend

A267314 Expansion of 2*x*(1 + 2*x - x^2)/((1 - x)*(1 + x^2)^2).

Table of values

List of values

A267314 Expansion of 2x(1 + 2x - x^2)/((1 - x)(1 + x^2)^2).