Search: id:A077463
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%I A077463
%S A077463 0,0,0,1,1,1,1,2,2,3,3,3,3,3,3,4,4,4,3,4,4,5,5,5,6,6,6,7,6,6,6,7,7,7,8,
%T A077463 8,8,9,9,9,9,9,9,9,9,10,9,9,9,10,10,11,11,11,12,13,13,14,13,13,12,12,
%U A077463 12,12,13,13,13,13,13,14,14,14,13,13,13,14,15,15,14,15,15,15,15,15
%N A077463 Number of primes p such that n < p < 2n-2.
%C A077463 a(n) > 0 for n > 3 by Bertrand's postulate.
%H A077463 Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/
               BertrandsPostulate.html">Bertrand's Postulate</a>
%Y A077463 Cf. A060715.
%Y A077463 Sequence in context: A025792 A119447 A157720 this_sequence A084556 A084506 
               A071578
%Y A077463 Adjacent sequences: A077460 A077461 A077462 this_sequence A077464 A077465 
               A077466
%K A077463 nonn
%O A077463 1,8
%A A077463 Eric Weisstein (eric(AT)weisstein.com), Nov 05, 2002

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