OFFSET
1,1
COMMENTS
Subsequence of primes of A187318. - Michel Marcus, Jun 08 2015
Primes congruent to 1, 3, 5, 7 mod 18. - Robert Israel, Jun 08 2015
LINKS
Robert Israel, Table of n, a(n) for n = 1..10000
MAPLE
select(isprime, [3, seq(seq(i*18+j, j=[1, 5, 7]), i=0..100)]); # Robert Israel, Jun 08 2015
MATHEMATICA
Select[Prime[Range[120]], OddQ[Mod[#, 9]] &] (* Bruno Berselli, Aug 31 2012 *)
PROG
(PARI) forprime(p=2, 600, if((p%9)%2==1, print1(p, ", ")))
(Magma) [p: p in PrimesUpTo(600) | p mod 18 in [1, 3, 5, 7]]; // Vincenzo Librandi, Jun 07 2015
(Magma) [a: n in [0..1000] | IsPrime(a) where a is Floor(9*n/5)]; // Vincenzo Librandi, Jun 08 2015
CROSSREFS
KEYWORD
nonn,easy,base
AUTHOR
Klaus Brockhaus, Dec 28 2002
STATUS
approved