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Search: id:A076186
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| A076186 |
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Numbers n such n!!+2^2 is prime. |
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+0
10
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| 1, 3, 5, 7, 11, 17, 29, 39, 43, 73, 93, 315, 549, 2059, 5543, 6937
(list; graph; listen)
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OFFSET
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1,2
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LINKS
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The OpenPFGW Project, Primality Tester
Henri & Renaud Lifchitz, PRP Records.
Joe McLean, Interesting Sources of Probable Primes
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CROSSREFS
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Cf. A006882, A080778 and A076185, A076188, A076189, A076190, A076193,
A076194, A076195, A076196, A076197 for other values of s in n!!+2^s
Sequence in context: A135246 A109543 A091567 this_sequence A092564 A068811 A088083
Adjacent sequences: A076183 A076184 A076185 this_sequence A076187 A076188 A076189
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KEYWORD
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nonn,more
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AUTHOR
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Zak Seidov (zakseidov(AT)yahoo.com), Nov 02 2002
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EXTENSIONS
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Edited and extended (n<4096) by Hugo Pfoertner (hugo(AT)pfoertner.org), Jun 19 2003
6937 from Herman Jamke (hermanjamke(AT)fastmail.fm), Jan 03 2008
Corrected by Herman Jamke (hermanjamke(AT)fastmail.fm), Jan 03 2008
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