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A123980 Numbers n for which 8n+1, 8n+5 and 8n+7 are primes. +0
1
12, 24, 57, 162, 234, 249, 267, 297, 432, 519, 564, 717, 969, 984, 1167, 1179, 1389, 1734, 2007, 2364, 2427, 2544, 2664, 2769, 2784, 3582, 3627, 3819, 3897, 4089, 4287, 5244, 5307, 5337, 5472, 5577, 5667, 5727, 5967, 6084, 6102, 6399, 6522, 6822, 6987 (list; graph; listen)
OFFSET

1,1

MATHEMATICA

Select[Range[7000], And @@ PrimeQ /@ ({1, 5, 7} + 8#) &] (*Chandler*)

CROSSREFS

Cf. A005122, A005123, A005124, A105133.

Adjacent sequences: A123977 A123978 A123979 this_sequence A123981 A123982 A123983

Sequence in context: A081808 A080495 A090776 this_sequence A097704 A098585 A087105

KEYWORD

nonn

AUTHOR

Artur Jasinski (grafix(AT)csl.pl), Oct 30 2006

EXTENSIONS

Extended by Ray Chandler (rayjchandler(AT)sbcglobal.net), Nov 05 2006

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Last modified October 7 08:31 EDT 2008. Contains 144667 sequences.


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