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A089175 a(n) = Floor[Sqrt[Prime[n]*PrimePi[n]]] 0

%I

%S 0,1,3,3,5,6,8,8,9,10,12,13,15,16,16,17,20,20,23,23,24,25,27,28,29,30,

%T 30,31,33,33,37,37,38,39,40,40,43,44,44,45,48,48,51,51,52,52,56,57,58,

%U 58,59,59,62,63,64,64,65,65,68,69,71,72,74,74,75,75,79,80,81,81,84,84

%N a(n) = Floor[Sqrt[Prime[n]*PrimePi[n]]]

%C Geometric mean of primes and their distribution function.

%t digits=200 a=Table[Floor[Sqrt[Prime[n]*PrimePi[n]]], {n, 1, digits}]

%K nonn

%O 1,3

%A _Roger L. Bagula_, Jan 03 2004

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Last modified January 17 11:05 EST 2022. Contains 350387 sequences. (Running on oeis4.)