Search: id:A076185
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%I A076185
%S A076185 1,3,5,7,9,21,23,27,57,75,103,169,219,245,461,695,1169,3597,3637,7495
%N A076185 Numbers n such that n!!+2 is prime.
%H A076185 The OpenPFGW Project, <a href="http://www.primeform.net/openpfgw/">Primality 
               Tester</a>
%H A076185 C. K. Caldwell, The Prime Glossary, <a href="http://primes.utm.edu/glossary/
               page.php/MultifactorialPrime.html">Multifactorial prime</a>
%H A076185 Joe McLean, <a href="http://uk.geocities.com/nassarawa%40btinternet.com/
               probprim2.htm">Interesting Sources of Probable Primes</a>
%t A076185 lst={};Do[If[PrimeQ[n!!+2], AppendTo[lst, n]], {n, 13^3}];lst [From Vladimir 
               Orlovsky (4vladimir(AT)gmail.com), Sep 08 2008]
%Y A076185 Cf. A006882, A080778 and A076186, A076188, A076189, A076190, A076193,
%Y A076185 A076194, A076195, A076196, A076197 for other values of s in n!!+2^s
%Y A076185 Sequence in context: A003052 A003219 A030142 this_sequence A101813 A134719 
               A099995
%Y A076185 Adjacent sequences: A076182 A076183 A076184 this_sequence A076186 A076187 
               A076188
%K A076185 nonn,more
%O A076185 1,2
%A A076185 Zak Seidov (zakseidov(AT)yahoo.com), Nov 02 2002
%E A076185 Edited and extended (n<4096) by Hugo Pfoertner (hugo(AT)pfoertner.org), 
               Jun 19 2003
%E A076185 One more term from Herman Jamke (hermanjamke(AT)fastmail.fm), Dec 30 
               2007

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