A091596 - cp's OEIS frontend

A091596 Expansion of x(1-2x^2)/(1-x-2x^2)^2.

n	a(n)
0	0
1	1
2	2
3	5
4	12
5	27
6	62
7	137
8	304
9	663
10	1442
11	3109
12	6676
13	14259
14	30342
15	64321
16	135928
17	286415
18	601962
19	1262173
20	2640860
21	5514731
22	11495502
23	23923065
24	49710272
25	103148807
26	213754162
27	442421397
28	914668964
29	1888990243
30	3897285142

[0, 1, 2, 5, 12, 27, 62, 137, 304, 663, 1442, 3109, 6676, 14259, 30342, 64321, 135928, 286415, 601962, 1262173, 2640860, 5514731, 11495502, 23923065, 49710272, 103148807, 213754162, 442421397, 914668964, 1888990243, 3897285142]

cp's OEIS Frontend

A091596 Expansion of x(1-2x^2)/(1-x-2x^2)^2.

Table of values

List of values