A161939 - cp's OEIS frontend

A161939 a(n) = ((3+sqrt(2))(4+sqrt(2))^n + (3-sqrt(2))(4-sqrt(2))^n)/2.

n	a(n)
0	3
1	14
2	70
3	364
4	1932
5	10360
6	55832
7	301616
8	1631280
9	8827616
10	47783008
11	258677440
12	1400457408
13	7582175104
14	41050997120
15	222257525504
16	1203346244352
17	6515164597760
18	35274469361152
19	190983450520576
20	1034025033108480

[3, 14, 70, 364, 1932, 10360, 55832, 301616, 1631280, 8827616, 47783008, 258677440, 1400457408, 7582175104, 41050997120, 222257525504, 1203346244352, 6515164597760, 35274469361152, 190983450520576, 1034025033108480]

cp's OEIS Frontend

A161939 a(n) = ((3+sqrt(2))(4+sqrt(2))^n + (3-sqrt(2))(4-sqrt(2))^n)/2.

Table of values

List of values

cp's OEIS Frontend

A161939 a(n) = ((3+sqrt(2))*(4+sqrt(2))^n + (3-sqrt(2))*(4-sqrt(2))^n)/2.

Table of values

List of values

A161939 a(n) = ((3+sqrt(2))(4+sqrt(2))^n + (3-sqrt(2))(4-sqrt(2))^n)/2.