A091922 - OEIS

%I #3 Mar 30 2012 18:50:43

%S 5,10,19,18,3801,6167

%N Smallest m such that the decimal representation of the m-th prime interpreted in base n is not a prime, but prime in bases 10<=b<n.

%C A090862(a(n))=n and A090862(m)<>n for m<a(n).

%K nonn,base,more

%O 11,1

%A _Reinhard Zumkeller_, Feb 13 2004