A266238 - cp's OEIS frontend

A266238 a(n+1) = 2^(2n - 1) + (-1)^n a(n), a(1) = 1.

n	a(n)
1	1
2	1
3	9
4	23
5	151
6	361
7	2409
8	5783
9	38551
10	92521
11	616809
12	1480343
13	9868951
14	23685481
15	157903209
16	378967703
17	2526451351
18	6063483241
19	40423221609
20	97015731863
21	646771545751
22	1552251709801
23	10348344732009
24	24836027356823
25	165573515712151
26	397376437709161

[1, 1, 9, 23, 151, 361, 2409, 5783, 38551, 92521, 616809, 1480343, 9868951, 23685481, 157903209, 378967703, 2526451351, 6063483241, 40423221609, 97015731863, 646771545751, 1552251709801, 10348344732009, 24836027356823, 165573515712151, 397376437709161]

cp's OEIS Frontend

A266238 a(n+1) = 2^(2n - 1) + (-1)^n a(n), a(1) = 1.

Table of values

List of values

cp's OEIS Frontend

A266238 a(n+1) = 2^(2*n - 1) + (-1)^n * a(n), a(1) = 1.

Table of values

List of values

A266238 a(n+1) = 2^(2n - 1) + (-1)^n a(n), a(1) = 1.