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Ceiling(n-th noncomposite/n).
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%I #2 Mar 30 2012 19:00:22

%S 1,1,1,2,2,2,2,3,3,3,3,3,3,3,3,3,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,5,

%T 4,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5

%N Ceiling(n-th noncomposite/n).

%C Ceiling(A008578(n)/A000027(n)). Numerators of (A008578(n)/A000027(n)) in A171525(n), denominators of (A008578(n)/A000027(n)) in A171526(n).

%F a(n) = A171622(n) + 1 for n >= 4.

%K nonn

%O 1,4

%A _Jaroslav Krizek_, Dec 13 2009

%E Corrected by _Jaroslav Krizek_, Dec 16 2009