A262189 a(n) = Fibonacci(n+1)! / Fibonacci(n).

1, 2, 3, 40, 8064, 778377600, 3930072474746880000, 14058704716171625754648505221120000000

Offset

1,2

Links

Table of n, a(n) for n=1..8.

Formula

a(n) = A060001(n+1) / A000045(n).

Example

For n=2, a(n) = Fibonacci(n+1)! / Fibonacci(n) = 2! / 1 = 2.

Mathematica

Array[Fibonacci[# + 1]!/Fibonacci@ # &, {8}] (* Michael De Vlieger, Sep 14 2015 *)

Prog

(PARI) a(n) = fibonacci(n+1)!/fibonacci(n);
vector(10, n, a(n))
(Magma) [Factorial(Fibonacci(n+1)) / Fibonacci(n): n in [1..10]]; // Vincenzo Librandi, Sep 15 2015

Crossrefs

Cf. A060001, A000045.

Sequence in context: A349560 A176366 A157132 * A077336 A242174 A340394

Adjacent sequences: A262186 A262187 A262188 * A262190 A262191 A262192

Keyword

nonn,easy

Author

Altug Alkan, Sep 14 2015

Status

approved