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%I #6 Jul 30 2012 17:38:22
%S 1,1,2,2,4,1,4,1,4,1,2,1,2,1,2,1,4,1,2,1,2,2,4,1,2,3,2,1,2,1,2,1,2,2,
%T 4,2,6,1,2,1,4,1,2,1,2,2,2,1,2,1,4,2,2,1,2,1,2,2,2,1,2,1,4,1,2,1,2,1,
%U 2,2,4,1,2,1,2,1,4,2,4,1,2,2,4,1,2,3,2
%N Least m>0 such that prime(n)-m and n-m are relatively prime.
%C Does every positive integer occur?
%H Clark Kimberling, <a href="/A214714/b214714.txt">Table of n, a(n) for n = 1..1000</a>
%e gcd(16,6) = 2, gcd(15,5) = 5, gcd(14,4) = 2, gcd(13,3) = 1, so a(7) = 4.
%t Table[m = 1; While[GCD[Prime[n] - m, n - m] != 1, m++]; m, {n, 1, 140}]
%Y Cf. A214052.
%K nonn,easy
%O 1,3
%A _Clark Kimberling_, Jul 27 2012
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