A350901 - cp's OEIS frontend

A350901 a(n) = F(n) * (2F(n-1)^2 + (-1)^(n-1)) (2*F(n)^2 + (-1)^n), where F(n) is the n-th Fibonacci number.

n	a(n)
0	0
1	1
2	3
3	42
4	399
5	4655
6	50568
7	565149
8	6248991
9	69380842
10	769112355
11	8530996299
12	94604226192
13	1049202243593
14	11635724020011
15	129042610760010
16	1431102560300007
17	15871178746661911
18	176014035001069464
19	1952025706821035013
20	21648296204009443815
21	240083286518079466826

[0, 1, 3, 42, 399, 4655, 50568, 565149, 6248991, 69380842, 769112355, 8530996299, 94604226192, 1049202243593, 11635724020011, 129042610760010, 1431102560300007, 15871178746661911, 176014035001069464, 1952025706821035013, 21648296204009443815, 240083286518079466826]

cp's OEIS Frontend

A350901 a(n) = F(n) * (2F(n-1)^2 + (-1)^(n-1)) (2*F(n)^2 + (-1)^n), where F(n) is the n-th Fibonacci number.

Table of values

List of values

cp's OEIS Frontend

A350901 a(n) = F(n) * (2*F(n-1)^2 + (-1)^(n-1)) * (2*F(n)^2 + (-1)^n), where F(n) is the n-th Fibonacci number.

Table of values

List of values

A350901 a(n) = F(n) * (2F(n-1)^2 + (-1)^(n-1)) (2*F(n)^2 + (-1)^n), where F(n) is the n-th Fibonacci number.