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A175943 Partial products of A027746. 4

%I

%S 1,2,6,12,24,120,240,720,5040,10080,20160,40320,120960,362880,725760,

%T 3628800,39916800,79833600,159667200,479001600,6227020800,12454041600,

%U 87178291200,261534873600,1307674368000,2615348736000,5230697472000

%N Partial products of A027746.

%C a(n) <= A265125(n), a(n) < A265125(n) for n > 10. - _Reinhard Zumkeller_, Dec 02 2015

%H Charles R Greathouse IV, <a href="/A175943/b175943.txt">Table of n, a(n) for n = 1..1000</a>

%F a(n) is approximately (n / (e log log n))^(n/log log n). - _Charles R Greathouse IV_, Sep 12 2012

%o (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

%o (Haskell)

%o a175943 n = a175943_list !! (n-1)

%o a175943_list = scanl1 (*) $ concat a027746_tabf

%o -- _Reinhard Zumkeller_, Dec 02 2015

%Y n! (A000142) is a subsequence.

%Y Cf. A027746.

%Y Cf. A265125.

%K nonn

%O 1,2

%A _Lior Manor_, Oct 27 2010

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Last modified May 5 18:37 EDT 2021. Contains 343573 sequences. (Running on oeis4.)