A175943 Partial products of A027746.

1, 2, 6, 12, 24, 120, 240, 720, 5040, 10080, 20160, 40320, 120960, 362880, 725760, 3628800, 39916800, 79833600, 159667200, 479001600, 6227020800, 12454041600, 87178291200, 261534873600, 1307674368000, 2615348736000, 5230697472000

Offset

1,2

Comments

a(n) <= A265125(n), a(n) < A265125(n) for n > 10. - Reinhard Zumkeller, Dec 02 2015

Links

Charles R Greathouse IV, Table of n, a(n) for n = 1..1000

Formula

a(n) is approximately (n / (e log log n))^(n/log log n). - Charles R Greathouse IV, Sep 12 2012

Prog

(PARI) print1(t=1); for(n=2, 10, f=factor(n); for(i=1, #f[, 1], for(j=1, f[i, 2], print1(", "t*=f[i, 1])))) \\ Charles R Greathouse IV, Sep 12 2012
(Haskell)
a175943 n = a175943_list !! (n-1)
a175943_list = scanl1 (*) $ concat a027746_tabf
-- Reinhard Zumkeller, Dec 02 2015

Crossrefs

n! (A000142) is a subsequence.

Cf. A027746.

Cf. A265125.

Sequence in context: A302652 A180071 A034882 * A228816 A294565 A210068

Adjacent sequences: A175940 A175941 A175942 * A175944 A175945 A175946

Keyword

nonn

Author

Lior Manor, Oct 27 2010

Status

approved