A104004 - cp's OEIS frontend

A104004 Expansion of (1-x) * (1+x) / ((1-2x)(1-x-x^2)).

n	a(n)
0	1
1	3
2	7
3	16
4	35
5	75
6	158
7	329
8	679
9	1392
10	2839
11	5767
12	11678
13	23589
14	47555
15	95720
16	192427
17	386451
18	775486
19	1555153
20	3117071
21	6245088
22	12507887
23	25044431
24	50135230
25	100345485
26	200812363
27	401821144
28	803960099
29	1608434427
30	3217700894
31	6436748057

[1, 3, 7, 16, 35, 75, 158, 329, 679, 1392, 2839, 5767, 11678, 23589, 47555, 95720, 192427, 386451, 775486, 1555153, 3117071, 6245088, 12507887, 25044431, 50135230, 100345485, 200812363, 401821144, 803960099, 1608434427, 3217700894, 6436748057]

cp's OEIS Frontend

A104004 Expansion of (1-x) * (1+x) / ((1-2x)(1-x-x^2)).

Table of values

List of values

cp's OEIS Frontend

A104004 Expansion of (1-x) * (1+x) / ((1-2*x)*(1-x-x^2)).

Table of values

List of values

A104004 Expansion of (1-x) * (1+x) / ((1-2x)(1-x-x^2)).