%I
%S 3,5,11,19,47,61,71,97,157,179,229,373,409,691,1231,1373,1987,2213,
%T 2557,3119,3989,8443,9311,17191,20707,26261,38281,41381,48611,54541,
%U 66889,74257,255709
%N Prime numbers p for which none of its digits appear in the decimal expansion of p/pi(p).
%e 373 is in the sequence because 1) it is a prime number, 2) there are 74 prime numbers smaller than or equal to 373, 3) in the decimal expansion of 373/74=5.04(054)... there are no 3's and 7's.
%t fQ[n_] := Block[{p = Prime@n}, Intersection[ Union@ Flatten@ RealDigits[p/n][[1]], IntegerDigits@ p] == {}]; Do[ If[fQ@n, Print@ Prime@n], {n, 200000}] (* _Robert G. Wilson v_ *)
%Y Cf. A000720: pi(n), the number of primes <= n.
%K base,more,nonn
%O 1,1
%A Luc Stevens (lms022(AT)yahoo.com), Apr 23 2006
%E Edited, corrected and extended by _Robert G. Wilson v_, Apr 24 2006
