A052953 - cp's OEIS frontend

A052953 Expansion of 2(1-x-x^2)/((1-x)(1+x)(1-2x)).

n	a(n)
0	2
1	2
2	4
3	6
4	12
5	22
6	44
7	86
8	172
9	342
10	684
11	1366
12	2732
13	5462
14	10924
15	21846
16	43692
17	87382
18	174764
19	349526
20	699052
21	1398102
22	2796204
23	5592406
24	11184812
25	22369622
26	44739244
27	89478486
28	178956972
29	357913942
30	715827884
31	1431655766
32	2863311532

[2, 2, 4, 6, 12, 22, 44, 86, 172, 342, 684, 1366, 2732, 5462, 10924, 21846, 43692, 87382, 174764, 349526, 699052, 1398102, 2796204, 5592406, 11184812, 22369622, 44739244, 89478486, 178956972, 357913942, 715827884, 1431655766, 2863311532]

cp's OEIS Frontend

A052953 Expansion of 2(1-x-x^2)/((1-x)(1+x)(1-2x)).

Table of values

List of values

cp's OEIS Frontend

A052953 Expansion of 2*(1-x-x^2)/((1-x)*(1+x)*(1-2*x)).

Table of values

List of values

A052953 Expansion of 2(1-x-x^2)/((1-x)(1+x)(1-2x)).