1,1
The corresponding primes are in A107689.
a(n)=primepi(A107689(n)).
Cf. A107611, A107612, A107689.
Sequence in context: A033304 A091622 A165821 this_sequence A026564 A156065 A130274
Adjacent sequences: A135045 A135046 A135047 this_sequence A135049 A135050 A135051
nonn,base
Zak Seidov (zakseidov(AT)yahoo.com), Feb 11 2008
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