A161947 - cp's OEIS frontend

A161947 a(n) = ((4+sqrt(2))(5+sqrt(2))^n + (4-sqrt(2))(5-sqrt(2))^n)/4.

n	a(n)
0	2
1	11
2	64
3	387
4	2398
5	15079
6	95636
7	609543
8	3895802
9	24938531
10	159781864
11	1024232427
12	6567341398
13	42116068159
14	270111829436
15	1732448726703
16	11111915190002
17	71272831185851
18	457154262488464
19	2932267507610067
20	18808127038865998
21	120639117713628439
22	773804255242366436

[2, 11, 64, 387, 2398, 15079, 95636, 609543, 3895802, 24938531, 159781864, 1024232427, 6567341398, 42116068159, 270111829436, 1732448726703, 11111915190002, 71272831185851, 457154262488464, 2932267507610067, 18808127038865998, 120639117713628439, 773804255242366436]

cp's OEIS Frontend

A161947 a(n) = ((4+sqrt(2))(5+sqrt(2))^n + (4-sqrt(2))(5-sqrt(2))^n)/4.

Table of values

List of values

cp's OEIS Frontend

A161947 a(n) = ((4+sqrt(2))*(5+sqrt(2))^n + (4-sqrt(2))*(5-sqrt(2))^n)/4.

Table of values

List of values

A161947 a(n) = ((4+sqrt(2))(5+sqrt(2))^n + (4-sqrt(2))(5-sqrt(2))^n)/4.