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A087915
Even numbers n such that 2*n+3 is a prime.
5
0, 2, 4, 8, 10, 14, 20, 22, 28, 32, 34, 38, 40, 50, 52, 62, 64, 68, 74, 80, 82, 88, 94, 98, 104, 110, 112, 118, 124, 130, 134, 140, 152, 154, 164, 172, 178, 182, 188, 190, 208, 214, 218, 220, 230, 232, 238, 242, 244, 248, 250, 260, 272, 280, 284, 292, 298, 302
OFFSET
1,2
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
MATHEMATICA
Select[Range[0, 350, 2], PrimeQ[2#+3]&] (* Harvey P. Dale, Jan 12 2012 *)
CROSSREFS
A subset of A067076.
Cf. A002145.
a(n)=A089193(n)-5
Sequence in context: A024895 A250310 A288447 * A088967 A200566 A091992
KEYWORD
easy,nonn
AUTHOR
Giovanni Teofilatto, Oct 18 2003
EXTENSIONS
More terms from Ray Chandler, Oct 19 2003
Offset corrected by Arkadiusz Wesolowski, Aug 09 2011
STATUS
approved