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A126761
{a(k)} is such that, for every positive integer n, the n-th prime = sum{1<=k<=n,GCD(k,n+1)=1} a(k).
+0
1
2, 1, 3, 1, 9, -3, 3, 3, 15, -5, 17
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Last modified December 3 22:15 EST 2009. Contains 170310 sequences.
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