A164591 - cp's OEIS frontend

A164591 a(n) = ((4 + sqrt(18))(4 + sqrt(8))^n + (4 - sqrt(18))(4 - sqrt(8))^n)/8 .

n	a(n)
0	1
1	7
2	48
3	328
4	2240
5	15296
6	104448
7	713216
8	4870144
9	33255424
10	227082240
11	1550614528
12	10588258304
13	72301150208
14	493703135232
15	3371215880192
16	23020101959680
17	157191088635904
18	1073367893409792
19	7329414438191104
20	50048372358250496

[1, 7, 48, 328, 2240, 15296, 104448, 713216, 4870144, 33255424, 227082240, 1550614528, 10588258304, 72301150208, 493703135232, 3371215880192, 23020101959680, 157191088635904, 1073367893409792, 7329414438191104, 50048372358250496]

cp's OEIS Frontend

A164591 a(n) = ((4 + sqrt(18))(4 + sqrt(8))^n + (4 - sqrt(18))(4 - sqrt(8))^n)/8 .

Table of values

List of values

cp's OEIS Frontend

A164591 a(n) = ((4 + sqrt(18))*(4 + sqrt(8))^n + (4 - sqrt(18))*(4 - sqrt(8))^n)/8 .

Table of values

List of values

A164591 a(n) = ((4 + sqrt(18))(4 + sqrt(8))^n + (4 - sqrt(18))(4 - sqrt(8))^n)/8 .