A097163 - cp's OEIS frontend

A097163 Expansion of (1+x-x^2)/((1-x)(1-4x^2)).

n	a(n)
0	1
1	2
2	5
3	9
4	21
5	37
6	85
7	149
8	341
9	597
10	1365
11	2389
12	5461
13	9557
14	21845
15	38229
16	87381
17	152917
18	349525
19	611669
20	1398101
21	2446677
22	5592405
23	9786709
24	22369621
25	39146837
26	89478485
27	156587349
28	357913941
29	626349397
30	1431655765
31	2505397589

[1, 2, 5, 9, 21, 37, 85, 149, 341, 597, 1365, 2389, 5461, 9557, 21845, 38229, 87381, 152917, 349525, 611669, 1398101, 2446677, 5592405, 9786709, 22369621, 39146837, 89478485, 156587349, 357913941, 626349397, 1431655765, 2505397589]

cp's OEIS Frontend

A097163 Expansion of (1+x-x^2)/((1-x)(1-4x^2)).

Table of values

List of values

cp's OEIS Frontend

A097163 Expansion of (1+x-x^2)/((1-x)*(1-4*x^2)).

Table of values

List of values

A097163 Expansion of (1+x-x^2)/((1-x)(1-4x^2)).