A261626 a(n) = Fibonacci(n!) - Fibonacci(n)!.

0, 0, 0, 6, 46362, 5358359254990966640871720

Offset: 0

Author

Altug Alkan, Sep 14 2015

Keywords

• nonn

Examples

			For n = 1, a(n) = Fibonacci(n!) - Fibonacci(n)! = 1 - 1 = 0.
		

Crossrefs

Cf. A000045, A060001, A063374.

Programs

PARI

a(n) = fibonacci(n!) - fibonacci(n)!;
vector(6, n, a(n-1))

Formula

a(n) = A063374(n) - A060001(n).

log log a(n) ~ n log n. - Charles R Greathouse IV, Sep 14 2015