A163605 - cp's OEIS frontend

A163605 a(n) = ((3+2sqrt(2))(5+sqrt(2))^n + (3-2sqrt(2))(5-sqrt(2))^n)/2.

n	a(n)
0	3
1	19
2	121
3	773
4	4947
5	31691
6	203129
7	1302397
8	8352003
9	53564899
10	343552921
11	2203536533
12	14133648147
13	90655141211
14	581477504729
15	3729706799437
16	23923085385603
17	153447597468979
18	984245010820921
19	6313155366422693

[3, 19, 121, 773, 4947, 31691, 203129, 1302397, 8352003, 53564899, 343552921, 2203536533, 14133648147, 90655141211, 581477504729, 3729706799437, 23923085385603, 153447597468979, 984245010820921, 6313155366422693]

cp's OEIS Frontend

A163605 a(n) = ((3+2sqrt(2))(5+sqrt(2))^n + (3-2sqrt(2))(5-sqrt(2))^n)/2.

Table of values

List of values

cp's OEIS Frontend

A163605 a(n) = ((3+2*sqrt(2))*(5+sqrt(2))^n + (3-2*sqrt(2))*(5-sqrt(2))^n)/2.

Table of values

List of values

A163605 a(n) = ((3+2sqrt(2))(5+sqrt(2))^n + (3-2sqrt(2))(5-sqrt(2))^n)/2.