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%I #9 May 13 2013 01:49:12
%S 1,1,1,5,7,11,13,17,19,23,29,31,37,41,43,47,53,59,61,67,71,73,79,83,
%T 89,97,101,103,107,109,113,127,131,137,139,149,151,157,163,167,173,
%U 179,181,191,193,197,199,211,223,227
%N Numerator of (n-th noncomposite/n).
%C Numerator of (A008578(n)/n). a(1)= a(2) = a(3) = 1, a(n) = A008578(n) = A000040(n-1) for n >= 4.
%o (PARI) a(n)=if(n>3,prime(n-1),1) \\ _Charles R Greathouse IV_, Aug 22 2011
%K nonn,easy
%O 1,4
%A _Jaroslav Krizek_, Dec 11 2009
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