A007909 - cp's OEIS frontend

A007909 Expansion of (1-x)/(1-2x+x^2-2x^3).

n	a(n)
0	1
1	1
2	1
3	3
4	7
5	13
6	25
7	51
8	103
9	205
10	409
11	819
12	1639
13	3277
14	6553
15	13107
16	26215
17	52429
18	104857
19	209715
20	419431
21	838861
22	1677721
23	3355443
24	6710887
25	13421773
26	26843545
27	53687091
28	107374183
29	214748365
30	429496729
31	858993459
32	1717986919
33	3435973837
34	6871947673

[1, 1, 1, 3, 7, 13, 25, 51, 103, 205, 409, 819, 1639, 3277, 6553, 13107, 26215, 52429, 104857, 209715, 419431, 838861, 1677721, 3355443, 6710887, 13421773, 26843545, 53687091, 107374183, 214748365, 429496729, 858993459, 1717986919, 3435973837, 6871947673]

cp's OEIS Frontend

A007909 Expansion of (1-x)/(1-2x+x^2-2x^3).

Table of values

List of values

cp's OEIS Frontend

A007909 Expansion of (1-x)/(1-2*x+x^2-2*x^3).

Table of values

List of values

A007909 Expansion of (1-x)/(1-2x+x^2-2x^3).