A162270 - cp's OEIS frontend

A162270 a(n) = ((5+sqrt(2))(3+sqrt(2))^n + (5-sqrt(2))(3-sqrt(2))^n)/2.

n	a(n)
0	5
1	17
2	67
3	283
4	1229
5	5393
6	23755
7	104779
8	462389
9	2040881
10	9008563
11	39765211
12	175531325
13	774831473
14	3420269563
15	15097797067
16	66644895461
17	294184793297
18	1298594491555
19	5732273396251
20	25303478936621
21	111694959845969

[5, 17, 67, 283, 1229, 5393, 23755, 104779, 462389, 2040881, 9008563, 39765211, 175531325, 774831473, 3420269563, 15097797067, 66644895461, 294184793297, 1298594491555, 5732273396251, 25303478936621, 111694959845969]

cp's OEIS Frontend

A162270 a(n) = ((5+sqrt(2))(3+sqrt(2))^n + (5-sqrt(2))(3-sqrt(2))^n)/2.

Table of values

List of values

cp's OEIS Frontend

A162270 a(n) = ((5+sqrt(2))*(3+sqrt(2))^n + (5-sqrt(2))*(3-sqrt(2))^n)/2.

Table of values

List of values

A162270 a(n) = ((5+sqrt(2))(3+sqrt(2))^n + (5-sqrt(2))(3-sqrt(2))^n)/2.