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Search: id:A089253
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| A089253 |
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Numbers n such that 2n-5 is a prime. |
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+0
12
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| 4, 5, 6, 8, 9, 11, 12, 14, 17, 18, 21, 23, 24, 26, 29, 32, 33, 36, 38, 39, 42, 44, 47, 51, 53, 54, 56, 57, 59, 66, 68, 71, 72, 77, 78, 81, 84, 86, 89, 92, 93, 98, 99, 101, 102, 108, 114, 116, 117, 119, 122, 123, 128, 131, 134, 137, 138, 141, 143, 144, 149, 156, 158, 159, 161
(list; graph; listen)
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OFFSET
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1,1
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REFERENCES
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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
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a(n) = A067076(n)+4. - Giovanni Teofilatto (g.teofilatto(AT)tiscalinet.it), Dec 14 2003
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CROSSREFS
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Cf. A067076, A089192.
Adjacent sequences: A089250 A089251 A089252 this_sequence A089254 A089255 A089256
Sequence in context: A061578 A023851 A091242 this_sequence A047432 A095279 A030751
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KEYWORD
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easy,nonn
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AUTHOR
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Giovanni Teofilatto (g.teofilatto(AT)tiscalinet.it), Dec 12 2003
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EXTENSIONS
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Corrected by Ralf Stephan, Mar 03 2004. Further correction from Jeremy Gardiner (jeremy.gardiner(AT)btinternet.com), Sep 11, 2004
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