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Search: id:A101768
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| A101768 |
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Numbers n such that n, 2n+1, 3n+2, 4n+3, 5n+4, 6n+5, 7n+6 are primes. |
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3
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| 2894219, 5246009, 8189999, 8678669, 13951559, 18160379, 24765509, 38911949, 40645919, 60041519, 64523969, 108405989, 124028309, 126392699, 132767039, 142738679, 189142589, 242024369, 248451839, 325561319, 354218759, 392136359
(list; graph; listen)
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OFFSET
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1,1
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MATHEMATICA
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a={}; Do[p=Prime[n]; If[PrimeQ[p*2+1]&&PrimeQ[p*3+2]&&PrimeQ[p*4+3]&&PrimeQ[p*5+4]&&PrimeQ[p*6+5]&&PrimeQ[p*7+6], AppendTo[a, p]], {n, 1, 17^5}]; Print[a]; - Vladimir Orlovsky (4vladimir(AT)gmail.com), Apr 29 2008
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CROSSREFS
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Cf. A000040, A005384, A067256-A067258, A101767-A101770.
Sequence in context: A051384 A015336 A033534 this_sequence A101769 A071369 A065427
Adjacent sequences: A101765 A101766 A101767 this_sequence A101769 A101770 A101771
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KEYWORD
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nonn,easy
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AUTHOR
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Jonathan Vos Post (jvospost2(AT)yahoo.com) and Ray Chandler (rayjchandler(AT)sbcglobal.net), Dec 31 2004
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