A106514 - cp's OEIS frontend

A106514 Expansion of (1-x)/((1-2x)(1-2*x-x^2)).

n	a(n)
0	1
1	3
2	9
3	25
4	67
5	175
6	449
7	1137
8	2851
9	7095
10	17553
11	43225
12	106051
13	259423
14	633089
15	1541985
16	3749827
17	9107175
18	22095249
19	53559817
20	129739171
21	314086735
22	760009793
23	1838300625
24	4444999651
25	10745077143
26	25968708369
27	62749602745

[1, 3, 9, 25, 67, 175, 449, 1137, 2851, 7095, 17553, 43225, 106051, 259423, 633089, 1541985, 3749827, 9107175, 22095249, 53559817, 129739171, 314086735, 760009793, 1838300625, 4444999651, 10745077143, 25968708369, 62749602745]

cp's OEIS Frontend

A106514 Expansion of (1-x)/((1-2x)(1-2*x-x^2)).

Table of values

List of values

cp's OEIS Frontend

A106514 Expansion of (1-x)/((1-2*x)*(1-2*x-x^2)).

Table of values

List of values

A106514 Expansion of (1-x)/((1-2x)(1-2*x-x^2)).