cp's OEIS Frontend

A100377 Number of prime numbers >= P(n)# and < P(n+1)# where P(i)=i-th prime, P(i)#=i-th primorial.

%I A100377 #7 Mar 31 2012 13:22:03
%S A100377 3,7,36,297,2905,39083,603698,11637502,288086265,7728273214,
%T A100377 251460107734
%N A100377 Number of prime numbers >= P(n)# and < P(n+1)# where P(i)=i-th prime, P(i)#=i-th primorial.
%C A100377 It appears that a(n) > P(n)#. Is this always true ?
%C A100377 Essentially the same as A072236. [From _R. J. Mathar_, Sep 02 2008]
%e A100377 P(1)#=2 P(2)#=6, 2 and 3 and 5 >= 2 and < 6 so a(1)=3
%K A100377 more,nonn
%O A100377 1,1
%A A100377 _Pierre CAMI_, Dec 29 2004
%E A100377 More terms from _Bernardo Boncompagni_, Jun 28 2007