A164603 - cp's OEIS frontend

A164603 a(n) = ((1+4sqrt(2))(2+2sqrt(2))^n + (1-4sqrt(2))(2-2sqrt(2))^n)/2.

n	a(n)
0	1
1	18
2	76
3	376
4	1808
5	8736
6	42176
7	203648
8	983296
9	4747776
10	22924288
11	110688256
12	534450176
13	2580553728
14	12460015616
15	60162277376
16	290489171968
17	1402605797376
18	6772379877376
19	32699942699008
20	157889290305536

[1, 18, 76, 376, 1808, 8736, 42176, 203648, 983296, 4747776, 22924288, 110688256, 534450176, 2580553728, 12460015616, 60162277376, 290489171968, 1402605797376, 6772379877376, 32699942699008, 157889290305536]

cp's OEIS Frontend

A164603 a(n) = ((1+4sqrt(2))(2+2sqrt(2))^n + (1-4sqrt(2))(2-2sqrt(2))^n)/2.

Table of values

List of values

cp's OEIS Frontend

A164603 a(n) = ((1+4*sqrt(2))*(2+2*sqrt(2))^n + (1-4*sqrt(2))*(2-2*sqrt(2))^n)/2.

Table of values

List of values

A164603 a(n) = ((1+4sqrt(2))(2+2sqrt(2))^n + (1-4sqrt(2))(2-2sqrt(2))^n)/2.