A097072 - cp's OEIS frontend

A097072 Expansion of (1 - 2x + 2x^2)/((1 - x^2)(1 - 2x)).

n	a(n)
0	1
1	0
2	3
3	4
4	11
5	20
6	43
7	84
8	171
9	340
10	683
11	1364
12	2731
13	5460
14	10923
15	21844
16	43691
17	87380
18	174763
19	349524
20	699051
21	1398100
22	2796203
23	5592404
24	11184811
25	22369620
26	44739243
27	89478484
28	178956971
29	357913940
30	715827883
31	1431655764
32	2863311531
33	5726623060
34	11453246123

[1, 0, 3, 4, 11, 20, 43, 84, 171, 340, 683, 1364, 2731, 5460, 10923, 21844, 43691, 87380, 174763, 349524, 699051, 1398100, 2796203, 5592404, 11184811, 22369620, 44739243, 89478484, 178956971, 357913940, 715827883, 1431655764, 2863311531, 5726623060, 11453246123]

cp's OEIS Frontend

A097072 Expansion of (1 - 2x + 2x^2)/((1 - x^2)(1 - 2x)).

Table of values

List of values

cp's OEIS Frontend

A097072 Expansion of (1 - 2*x + 2*x^2)/((1 - x^2)*(1 - 2*x)).

Table of values

List of values

A097072 Expansion of (1 - 2x + 2x^2)/((1 - x^2)(1 - 2x)).