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(Fibonacci(n)!!)!.
1

%I #3 Mar 31 2012 12:38:27

%S 1,1,1,2,6,1307674368000

%N (Fibonacci(n)!!)!.

%C Next term: 2.0205002129876...*10^827

%F a(n) = A000142(A006882(A000045(n))) . [R. J. Mathar, Nov 12 2009]

%p A000142 := proc(n) n! ; end proc ;

%p A006882 := proc(n) doublefactorial(n) ; end proc:

%p A000045 := proc(n) combinat[fibonacci](n) ; end proc:

%p A167446 := proc(n) A000142(A006882(A000045(n))) ; end proc: seq(A167446(n),n=0..5) ; # _R. J. Mathar_, Nov 12 2009

%t Array[Fibonacci[ # ]!!!&,6]

%K nonn

%O 0,4

%A _Vladimir Joseph Stephan Orlovsky_, Nov 03 2009

%E Added parentheses in the definition - _R. J. Mathar_, Nov 12 2009