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%I #19 Nov 13 2013 17:10:48
%S 1,1,1,7,20,28,96,152,185,212,1179,1829,2217,3382,14350,30780,31528,
%T 40929,103498,104047,149674,325845,1094396,1319933,2850163,6957867,
%U 10539421,10655453
%N Number of primes <= A214756(n).
%C a(n) = pi(A214756(n)).
%F a(n) = A000217(A214756(n))
%e A214756(5) = 71, so a(5) = primepi(A214756(5)) = primepi(71) = 20.
%Y Cf. A000101, A104272, A214756, A001223.
%Y Cf. A002386, A214925, A214926, A214757.
%K nonn
%O 1,4
%A _John W. Nicholson_, Jul 29 2012
%E Extension to a(28) added by _John W. Nicholson_, Nov 11 2013
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