|
| |
|
|
A088879
|
|
3n+5 is a prime.
|
|
7
| |
|
|
-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; 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
|
|
|
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 [From Vladimir Orlovsky (4vladimir(AT)gmail.com), May 22 2009]
|
|
|
CROSSREFS
| A003627 gives primes, A091177 gives prime index.
Sequence in context: A103829 A164530 A058817 * A139363 A091065 A163823
Adjacent sequences: A088876 A088877 A088878 * A088880 A088881 A088882
|
|
|
KEYWORD
| easy,sign
|
|
|
AUTHOR
| Giovanni Teofilatto (g.teofilatto(AT)tiscalinet.it), Nov 27 2003
|
|
|
EXTENSIONS
| Edited and extended by Ray Chandler (rayjchandler(AT)sbcglobal.net), Dec 26 2003
|
| |
|
|
