A091919 - cp's OEIS frontend

A091919 Expansion of 1/((1-2x)(1-x^2)^2).

n	a(n)
0	1
1	2
2	6
3	12
4	27
5	54
6	112
7	224
8	453
9	906
10	1818
11	3636
12	7279
13	14558
14	29124
15	58248
16	116505
17	233010
18	466030
19	932060
20	1864131
21	3728262
22	7456536
23	14913072
24	29826157
25	59652314
26	119304642
27	238609284
28	477218583
29	954437166
30	1908874348
31	3817748696

[1, 2, 6, 12, 27, 54, 112, 224, 453, 906, 1818, 3636, 7279, 14558, 29124, 58248, 116505, 233010, 466030, 932060, 1864131, 3728262, 7456536, 14913072, 29826157, 59652314, 119304642, 238609284, 477218583, 954437166, 1908874348, 3817748696]

cp's OEIS Frontend

A091919 Expansion of 1/((1-2x)(1-x^2)^2).

Table of values

List of values

cp's OEIS Frontend

A091919 Expansion of 1/((1-2*x)*(1-x^2)^2).

Table of values

List of values

A091919 Expansion of 1/((1-2x)(1-x^2)^2).