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Number of primes p with 2^n < p < 3^n.
1

%I #8 Aug 06 2019 11:42:44

%S 0,2,5,16,42,111,296,793,2130,5796,15788,43370,119711,332449,927748,

%T 2600623,7319908,20677806,58604898,166595953,474868192,1356904893,

%U 3885983995,11151740822,32062866197,92345080709,266390632933

%N Number of primes p with 2^n < p < 3^n.

%t Join[{0},Table[PrimePi[3^n]-PrimePi[2^n],{n,2,28}]] (* _Harvey P. Dale_, Aug 06 2019 *)

%Y See A163825 for another version.

%Y Cf. A007053, A055729.

%K nonn

%O 1,2

%A _Amarnath Murthy_, Oct 20 2002

%E More terms from _Ralf Stephan_, Oct 31 2002

%E More terms from _Vladeta Jovovic_, Dec 22 2002

%E Edited by _N. J. A. Sloane_, Aug 07 2009