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A089192
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Numbers n such that 2n-7 is a prime.
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13
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5, 6, 7, 9, 10, 12, 13, 15, 18, 19, 22, 24, 25, 27, 30, 33, 34, 37, 39, 40, 43, 45, 48, 52, 54, 55, 57, 58, 60, 67, 69, 72, 73, 78, 79, 82, 85, 87, 90, 93, 94, 99, 100, 102, 103, 109, 115, 117, 118, 120, 123, 124, 129, 132, 135, 138, 139, 142, 144, 145, 150, 157, 159, 160
(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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MATHEMATICA
| lst={}; Do[If[PrimeQ[2*n-7], (*Print[n]; *)AppendTo[lst, n]], {n, 6!}]; lst [From Vladimir Orlovsky (4vladimir(AT)gmail.com), Aug 26 2008]
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CROSSREFS
| Cf. A089253.
Sequence in context: A191850 A066263 A178096 * A132829 A180061 A196029
Adjacent sequences: A089189 A089190 A089191 * A089193 A089194 A089195
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KEYWORD
| easy,nonn
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AUTHOR
| Giovanni Teofilatto (g.teofilatto(AT)tiscalinet.it), Dec 08 2003
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EXTENSIONS
| Corrected by Ralf Stephan, Mar 03 2004. Further correction from Jeremy Gardiner (jeremy.gardiner(AT)btinternet.com), Sep 11, 2004
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