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A088879 Numbers n such that 3n + 5 is a prime. 8
-1, 0, 2, 4, 6, 8, 12, 14, 16, 18, 22, 26, 28, 32, 34, 36, 42, 44, 48, 54, 56, 58, 62, 64, 74, 76, 78, 82, 84, 86, 88, 92, 96, 102, 104, 114, 116, 118, 126, 128, 132, 138, 142, 146, 148, 152, 154, 158, 162, 166, 168, 172, 184, 186, 188, 194, 196, 198, 204, 212, 214, 216, 218 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,3
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
LINKS
FORMULA
a(n) = A024893(n) - 1 = A087370(n) - 2.
MATHEMATICA
lst={}; Do[p=n+(n+2)+(n+3); If[PrimeQ[p], AppendTo[lst, n]], {n, 0, 5!}]; lst (* Vladimir Joseph Stephan Orlovsky, May 22 2009 *)
Select[Range[-1, 300], PrimeQ[3#+5]&] (* Harvey P. Dale, Jun 08 2020 *)
CROSSREFS
A003627 gives primes, A091177 gives prime index.
Cf. A016789.
Sequence in context: A328593 A254748 A217562 * A316470 A290822 A318186
KEYWORD
easy,sign
AUTHOR
Giovanni Teofilatto, Nov 27 2003
EXTENSIONS
Edited and extended by Ray Chandler, Dec 26 2003
STATUS
approved

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Last modified April 23 06:04 EDT 2024. Contains 371906 sequences. (Running on oeis4.)