A137579 - OEIS

%I #7 Aug 21 2012 17:10:48

%S 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,1,0,0,0,1,0,1,

%T 2,1,2,2,0,2,3,0,3,2,2,3,1,2,3,2,2,3,3,2,3,4,1,4,4,5,3,3,4,4,3,5,3,6,

%U 6,4,5,5,3,5,5,7,7,6,6,4,5,8,1,8,8,5,8,7,2,6,10,6,7,7,7,8,7,11,6,7,7

%N Frequency of occurrence of the least frequent digits of decimal representation of n!.

%C a(n)=Min{A027869(n),A079680(n),A079714(n),A079684(n),A079688(n),A079690(n),A079691(n),A079692(n),A079693(n),A079694(n)}.

%C a(n) = 0 iff A137580(n) < 10.

%H <a href="/index/Fa#factorial">Index entries for sequences related to factorial numbers</a>.

%t Table[Min[DigitCount[n!]],{n,0,110}] (* _Harvey P. Dale_, Aug 21 2012 *)

%Y Cf. A000142, A137577, A137578.

%K nonn,base

%O 0,35

%A _Reinhard Zumkeller_, Jan 27 2008