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Round(prime(n)/log[10](prime(n))).
0

%I #5 May 31 2019 13:10:28

%S 7,6,7,8,11,12,14,15,17,20,21,24,25,26,28,31,33,34,37,38,39,42,43,46,

%T 49,50,51,53,53,55,60,62,64,65,69,69,71,74,75,77,79,80,84,84,86,87,91,

%U 95,96,97,98,100,101,105,107,109,111,111,113,115,115,119,123,125,125,127

%N Round(prime(n)/log[10](prime(n))).

%t Round[#/Log10[#]]&/@Prime[Range[70]] (* _Harvey P. Dale_, May 31 2019 *)

%K nonn

%O 1,1

%A _Jorge Coveiro_, Apr 15 2004