A163614 - cp's OEIS frontend

A163614 a(n) = ((1 + 3sqrt(2))(3 + sqrt(2))^n + (1 - 3sqrt(2))(3 - sqrt(2))^n)/2.

n	a(n)
0	1
1	9
2	47
3	219
4	985
5	4377
6	19367
7	85563
8	377809
9	1667913
10	7362815
11	32501499
12	143469289
13	633305241
14	2795546423
15	12340141851
16	54472026145
17	240451163913
18	1061402800463
19	4685258655387
20	20681732329081
21	91293583386777

[1, 9, 47, 219, 985, 4377, 19367, 85563, 377809, 1667913, 7362815, 32501499, 143469289, 633305241, 2795546423, 12340141851, 54472026145, 240451163913, 1061402800463, 4685258655387, 20681732329081, 91293583386777]

cp's OEIS Frontend

A163614 a(n) = ((1 + 3sqrt(2))(3 + sqrt(2))^n + (1 - 3sqrt(2))(3 - sqrt(2))^n)/2.

Table of values

List of values

cp's OEIS Frontend

A163614 a(n) = ((1 + 3*sqrt(2))*(3 + sqrt(2))^n + (1 - 3*sqrt(2))*(3 - sqrt(2))^n)/2.

Table of values

List of values

A163614 a(n) = ((1 + 3sqrt(2))(3 + sqrt(2))^n + (1 - 3sqrt(2))(3 - sqrt(2))^n)/2.