A162269 - cp's OEIS frontend

A162269 a(n) = ((5+sqrt(2))(2+sqrt(2))^n + (5-sqrt(2))(2-sqrt(2))^n)/2.

n	a(n)
0	5
1	12
2	38
3	128
4	436
5	1488
6	5080
7	17344
8	59216
9	202176
10	690272
11	2356736
12	8046400
13	27472128
14	93795712
15	320238592
16	1093362944
17	3732974592
18	12745172480
19	43514740736
20	148568617984
21	507244990464
22	1731842725888
23	5912880922624

[5, 12, 38, 128, 436, 1488, 5080, 17344, 59216, 202176, 690272, 2356736, 8046400, 27472128, 93795712, 320238592, 1093362944, 3732974592, 12745172480, 43514740736, 148568617984, 507244990464, 1731842725888, 5912880922624]

cp's OEIS Frontend

A162269 a(n) = ((5+sqrt(2))(2+sqrt(2))^n + (5-sqrt(2))(2-sqrt(2))^n)/2.

Table of values

List of values

cp's OEIS Frontend

A162269 a(n) = ((5+sqrt(2))*(2+sqrt(2))^n + (5-sqrt(2))*(2-sqrt(2))^n)/2.

Table of values

List of values

A162269 a(n) = ((5+sqrt(2))(2+sqrt(2))^n + (5-sqrt(2))(2-sqrt(2))^n)/2.