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A167446 (Fibonacci(n)!!)!. 1
1, 1, 1, 2, 6, 1307674368000 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,4

COMMENTS

Next term: 2.0205002129876...*10^827

LINKS

Table of n, a(n) for n=0..5.

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: A151995 A152210 A206034 * A100378 A020819 A111953

Adjacent sequences:  A167443 A167444 A167445 * A167447 A167448 A167449

KEYWORD

nonn

AUTHOR

Vladimir Joseph Stephan Orlovsky, Nov 03 2009

EXTENSIONS

Added parentheses in the definition - R. J. Mathar, Nov 12 2009

STATUS

approved

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Last modified June 28 16:56 EDT 2017. Contains 288839 sequences.