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A090485 a(n) = Floor[(Exp[n/PrimePi[n]]-1)/Log[n]]. 0

%I

%S 9,3,4,2,3,2,3,3,4,3,4,3,3,4,4,3,4,3,3,4,4,3,4,4,5,5,6,5,5,4,5,5,5,6,

%T 7,5,6,6,7,6,6,5,5,6,6,5,6,6,6,7,7,6,7,7,7,8,8,7,8,6,7,7,8,8,9,7,8,8,

%U 9,7,8,7,7,8,8,8,9,8,8,8,9,8,8,8,9,9,10,8,9,9,9,10,10,11,11,10,10,11,11,10

%N a(n) = Floor[(Exp[n/PrimePi[n]]-1)/Log[n]].

%C The Shannon signal power of the distribution of the Primes.

%D C. E. Shannon, The Mathematical Theory of Communication, page 100.

%t digits=200 f[n_]=Floor[(Exp[n/PrimePi[n]]-1)/Log[n]] a=Table[f[n], {n, 2, digits}]

%K nonn

%O 2,1

%A _Roger L. Bagula_, Feb 01 2004

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Last modified September 16 23:53 EDT 2021. Contains 347477 sequences. (Running on oeis4.)