A161938 - cp's OEIS frontend

A161938 a(n) = ((3+sqrt(2))(2+sqrt(2))^n + (3-sqrt(2))(2-sqrt(2))^n)/2.

n	a(n)
0	3
1	8
2	26
3	88
4	300
5	1024
6	3496
7	11936
8	40752
9	139136
10	475040
11	1621888
12	5537472
13	18906112
14	64549504
15	220385792
16	752444160
17	2569005056
18	8771131904
19	29946517504
20	102243806208
21	349082189824
22	1191841146880
23	4069200207872
24	13893118537728
25	47434073735168

[3, 8, 26, 88, 300, 1024, 3496, 11936, 40752, 139136, 475040, 1621888, 5537472, 18906112, 64549504, 220385792, 752444160, 2569005056, 8771131904, 29946517504, 102243806208, 349082189824, 1191841146880, 4069200207872, 13893118537728, 47434073735168]

cp's OEIS Frontend

A161938 a(n) = ((3+sqrt(2))(2+sqrt(2))^n + (3-sqrt(2))(2-sqrt(2))^n)/2.

Table of values

List of values

cp's OEIS Frontend

A161938 a(n) = ((3+sqrt(2))*(2+sqrt(2))^n + (3-sqrt(2))*(2-sqrt(2))^n)/2.

Table of values

List of values

A161938 a(n) = ((3+sqrt(2))(2+sqrt(2))^n + (3-sqrt(2))(2-sqrt(2))^n)/2.