A162271 - cp's OEIS frontend

A162271 a(n) = ((5+sqrt(2))(4+sqrt(2))^n + (5-sqrt(2))(4-sqrt(2))^n)/2.

n	a(n)
0	5
1	22
2	106
3	540
4	2836
5	15128
6	81320
7	438768
8	2371664
9	12830560
10	69441184
11	375901632
12	2035036480
13	11017668992
14	59650841216
15	322959363840
16	1748563133696
17	9467073975808
18	51256707934720
19	277514627816448

[5, 22, 106, 540, 2836, 15128, 81320, 438768, 2371664, 12830560, 69441184, 375901632, 2035036480, 11017668992, 59650841216, 322959363840, 1748563133696, 9467073975808, 51256707934720, 277514627816448]

cp's OEIS Frontend

A162271 a(n) = ((5+sqrt(2))(4+sqrt(2))^n + (5-sqrt(2))(4-sqrt(2))^n)/2.

Table of values

List of values

cp's OEIS Frontend

A162271 a(n) = ((5+sqrt(2))*(4+sqrt(2))^n + (5-sqrt(2))*(4-sqrt(2))^n)/2.

Table of values

List of values

A162271 a(n) = ((5+sqrt(2))(4+sqrt(2))^n + (5-sqrt(2))(4-sqrt(2))^n)/2.