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A033868
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Numbers n such that 7*n-11 is prime.
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10
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2, 4, 6, 10, 12, 16, 24, 30, 34, 36, 40, 42, 46, 52, 54, 60, 70, 76, 82, 84, 90, 94, 96, 112, 114, 120, 124, 136, 142, 144, 150, 160, 162, 166, 172, 180, 184, 186, 190, 196, 210, 214, 222, 226, 232, 234, 240, 244, 252, 262, 270, 274, 280, 300, 306, 322, 336, 342
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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REFERENCES
| M. Cerasoli, F. Eugeni and M. Protasi, Elementi di Matematica Discreta, Bologna 1988
Emanuele Munarini and Norma Zagaglia Salvi, Matematica Discreta,UTET, CittaStudiEdizioni, Milano 1997
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FORMULA
| a(n) = A024903(n)+1 = A089033(n)+2 = A090614(n)*2+2.
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MATHEMATICA
| Select[Range[500], PrimeQ[7#-11]&] (* From Harvey P. Dale, Mar 31 2011 *)
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CROSSREFS
| A045437 gives primes, A090613 gives prime index.
Cf. A024903, A045437, A089033, A090613, A090614.
Sequence in context: A005942 A024907 A033098 * A045954 A072542 A167856
Adjacent sequences: A033865 A033866 A033867 * A033869 A033870 A033871
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KEYWORD
| easy,nonn
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AUTHOR
| Giovanni Teofilatto (g.teofilatto(AT)tiscalinet.it), Dec 01 2003
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EXTENSIONS
| Extended by Ray Chandler (rayjchandler(AT)sbcglobal.net), Dec 23 2003
Offset corrected by Arkadiusz Wesolowski, Aug 09 2011
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