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A167446
(Fibonacci(n)!!)!.
1
1, 1, 1, 2, 6, 1307674368000
OFFSET
0,4
COMMENTS
Next term: 2.0205002129876...*10^827
FORMULA
a(n) = A000142(A006882(A000045(n))) . [R. J. Mathar, Nov 12 2009]
MAPLE
A000142 := proc(n) n! ; end proc ;
A006882 := proc(n) doublefactorial(n) ; end proc:
A000045 := proc(n) combinat[fibonacci](n) ; end proc:
A167446 := proc(n) A000142(A006882(A000045(n))) ; end proc: seq(A167446(n), n=0..5) ; # R. J. Mathar, Nov 12 2009
MATHEMATICA
Array[Fibonacci[ # ]!!!&, 6]
CROSSREFS
Sequence in context: A206034 A299376 A364750 * A100378 A020819 A111953
KEYWORD
nonn
AUTHOR
EXTENSIONS
Added parentheses in the definition - R. J. Mathar, Nov 12 2009
STATUS
approved