%I
%S 0,1,2,1,3,1,4,1,4,2,5,5,6,3,2,3,7,7,8,2,8,4,9,3,9,9,1,9,10,1,11,11,1,
%T 11,11,11,12,6,4,3,13,13,14,7,14,7,15,5,15,3,5,15,16,8,16,2,16,8,17,
%U 17,18,9,2,9,18,3,19,19,19,19,20,5,21,21,7,21,3,7,22,11,22,11,23,23,23,23
%N Numerator of the reduced fractions of the ratios of the number of primes less than n over the number of composites less than n.
%C Conjecture: The ratio Pi(x)/(nPi(x)) tends to 0 as n tends to infinity. This is evident from the fact that Li(x)/((nLi(x)) > 0 as n > infinity but unfortunately not proof.
%F pi(n) is the number of primes <= n. Number of composites <= n = n  pi(n).
%o (PARI) pixovcmpx(n) = for(x=1,n,print1(numerator(pi(x)/(xpi(x)))",")) pi(n) = \Number of primes less than or equal to n. { local(c,x); c=0;forprime(x=1,n,c++);return(c) }
%K frac,nonn
%O 1,3
%A _Cino Hilliard_, Jan 30 2005
