Search: id:A122258
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%I A122258
%S A122258 0,1,2,2,3,3,4,4,4,4,4,4,5,5,5,5,6,6,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,
%T A122258 7,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,
%U A122258 8,8,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,10,10,10,10,10,10
%N A122258 Number of Pierpont primes <= n.
%C A122258 Partial sums of A122257;
%C A122258 a(n) <= A000720(n); a(n) <= A071521(n).
%H A122258 Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/
               PierpontPrime.html">Pierpont Prime</a>
%Y A122258 Sequence in context: A143489 A130249 A061071 this_sequence A068509 A070319 
               A057142
%Y A122258 Adjacent sequences: A122255 A122256 A122257 this_sequence A122259 A122260 
               A122261
%K A122258 nonn
%O A122258 1,3
%A A122258 Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Aug 29 2006

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