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a(n) = numerator of sum{k=1 to n} 1/A127518(k).
2

%I #6 Apr 09 2014 10:12:25

%S 1,4,35,187,247,1849,2059,2227,789,7381,83711,86021,1145993,1171733,

%T 1195757,2436559,42142223,14274301,275295799,55835135,56540567,

%U 19093197,444316699,1347822955,34052522467,309447273803,312536252003

%N a(n) = numerator of sum{k=1 to n} 1/A127518(k).

%C Every term is nonprime (1 or composite).

%Y Cf. A127518, A127520.

%K frac,nonn

%O 1,2

%A _Leroy Quet_, Jan 17 2007

%E Extended by _Ray Chandler_, Jan 22 2007