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Search: id:A162001
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| A162001 |
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Initial members of prime triples (p, p+2, p+6) for which also the sum 3p+8 is prime. |
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+0
1
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| 5, 11, 17, 41, 101, 311, 347, 641, 857, 1301, 1427, 1481, 2237, 2687, 3461, 3527, 4001, 4787, 8861, 10457, 11171, 11777, 13691, 14627, 19421, 19991, 21017, 21557, 22271, 24917, 25997, 26261, 26681, 26711, 27737, 29021, 31511, 32057, 33347, 35591
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OFFSET
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1,1
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COMMENT
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(5,7,11) => 23 is prime
Contribution from Emeric Deutsch (deutsch(AT)duke.poly.edu), Jul 12 2009: (Start)
A subsequence of A022004 (= initial members of prime triples (p, p+2, p+6)).
(End)
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MAPLE
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a := proc (n) if isprime(n) = true and isprime(n+2) = true and isprime(n+6) = true and isprime(3*n+8) = true then n else end if end proc: seq(a(n), n = 1 .. 50000); [From Emeric Deutsch (deutsch(AT)duke.poly.edu), Jul 12 2009]
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CROSSREFS
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Sequence in context: A094205 A136091 A022004 this_sequence A095183 A018730 A050836
Adjacent sequences: A161998 A161999 A162000 this_sequence A162002 A162003 A162004
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KEYWORD
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nonn
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AUTHOR
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Milton L. Brown (miltbrown(AT)earthlink.net), Jun 24 2009
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EXTENSIONS
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Definition corrected by Emeric Deutsch (deutsch(AT)duke.poly.edu), Jul 12 2009
Extended by Emeric Deutsch (deutsch(AT)duke.poly.edu), Jul 12 2009
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