A163071 - cp's OEIS frontend

A163071 a(n) = ((4+sqrt(5))(3+sqrt(5))^n + (4-sqrt(5))(3-sqrt(5))^n)/2.

n	a(n)
0	4
1	17
2	86
3	448
4	2344
5	12272
6	64256
7	336448
8	1761664
9	9224192
10	48298496
11	252894208
12	1324171264
13	6933450752
14	36304019456
15	190090313728
16	995325804544
17	5211593572352
18	27288258215936
19	142883175006208
20	748146017173504

[4, 17, 86, 448, 2344, 12272, 64256, 336448, 1761664, 9224192, 48298496, 252894208, 1324171264, 6933450752, 36304019456, 190090313728, 995325804544, 5211593572352, 27288258215936, 142883175006208, 748146017173504]

cp's OEIS Frontend

A163071 a(n) = ((4+sqrt(5))(3+sqrt(5))^n + (4-sqrt(5))(3-sqrt(5))^n)/2.

Table of values

List of values

cp's OEIS Frontend

A163071 a(n) = ((4+sqrt(5))*(3+sqrt(5))^n + (4-sqrt(5))*(3-sqrt(5))^n)/2.

Table of values

List of values

A163071 a(n) = ((4+sqrt(5))(3+sqrt(5))^n + (4-sqrt(5))(3-sqrt(5))^n)/2.