A051825 - OEIS

%I #4 Jun 11 2014 17:24:23

%S 1,8,66,488,3360,23132,165550,1262132,10302943,88755142,788594730,

%T 7086051536,63890207069,581627969769,5421588729745,52259542704256

%N Number of numbers below 10^n with nonzero multiplicative digital root 5.

%D William Mayne, sci.math, Jun 15 1991

%F # { i : 10^(n-1) < i < 10^n and A051802(i)=5 }

%Y Cf. A051802, A051807, A051816.

%K nonn,base,hard

%O 1,2

%A _Dan Hoey_, Dec 09 1999