Search: id:A145196
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%I A145196
%S A145196 0,0,1,2,4,6,9,12,16,20,24,28,33,38,44,50,56,62,68,75,82,89,97,105,113,
%T A145196 122,131,141,151,162,173,185,197,209,221,233,245,257,270,283,296,309,
%U A145196 322,335,349,363,377,391,406,421,437,453,469,485,501,517,533,549,565
%N A145196 Partial sums of number of primes < nth-prime p such that p+4 is prime.
%F A145196 a(n) = sum_{i=1..n} A139789(i). [From R. J. Mathar (mathar(AT)strw.leidenuniv.nl), 
               Nov 03 2008]
%Y A145196 Cf. A139789.
%Y A145196 Sequence in context: A145801 A033291 A105434 this_sequence A061536 A095114 
               A062048
%Y A145196 Adjacent sequences: A145193 A145194 A145195 this_sequence A145197 A145198 
               A145199
%K A145196 nonn
%O A145196 1,4
%A A145196 Giovanni Teofilatto (g.teofilatto(AT)tiscalinet.it), Oct 04 2008
%E A145196 More terms from R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Nov 03 2008

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