Search: id:A078586
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%I A078586
%S A078586 3,21,231,4389,100947,3129357,134562351,6324430497,373141399323,
%T A078586 25000473754641,1775033636579511,140227657289781369,
%U A078586 11638895555051853627,1198806242170340923581,128272267912226478823167
%N A078586 a(n) is the product of the first n primes of the form 4k+3.
%C A078586 a(n)+2 is a prime for n=1,2,3,4,8,10,12,17,19,22,23,53.
%H A078586 T. D. Noe, <a href="b078586.txt">Table of n, a(n) for n=1..100</a>
%t A078586 maxN=15; pLst={}; k=0; While[Length[pLst]<maxN, k++; If[PrimeQ[4k-1], 
               AppendTo[pLst, 4k-1]]]; lst=Drop[FoldList[Times, 1, pLst], 1]
%Y A078586 Cf. A002110, A006278.
%Y A078586 Sequence in context: A119097 A008545 A005373 this_sequence A138903 A058562 
               A145083
%Y A078586 Adjacent sequences: A078583 A078584 A078585 this_sequence A078587 A078588 
               A078589
%K A078586 easy,nonn
%O A078586 1,1
%A A078586 T. D. Noe (noe(AT)sspectra.com), Dec 01 2002

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