A034879 a(n) = product of factorials of digits of a(n-1).

3, 6, 720, 10080, 40320, 288, 3251404800, 33443020800, 10032906240, 150493593600, 1179600089304268800000, 6494947622660923209343932825600000000, 817033558319976619871285124179533435912396304547840000000000000

Offset

1,1

Comments

The next term has 110 digits. - Harvey P. Dale, Oct 17 2011

Links

Table of n, a(n) for n=1..13.

Formula

a(n+1) = A066459(a(n)), a(1) = 3. - Reinhard Zumkeller, Oct 11 2011

Mathematica

NestList[Times@@(IntegerDigits[#]!)&, 3, 12] (* Harvey P. Dale, Oct 17 2011 *)

Prog

(Haskell)
a034879 n = a034879_list !! (n-1)
a034879_list = iterate a066459 3  -- Reinhard Zumkeller, Oct 11 2011

Crossrefs

Sequence in context: A179267 A171928 A308259 * A113588 A071106 A157548

Adjacent sequences: A034876 A034877 A034878 * A034880 A034881 A034882

Keyword

nonn,base,nice

Author

Erich Friedman

Extensions

a(13) from Harvey P. Dale, Oct 17 2011

Status

approved