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 A229947 Primes congruent to {1, 11, 13, 17, 19, 29} mod 30. 2
 11, 13, 17, 19, 29, 31, 41, 43, 47, 59, 61, 71, 73, 79, 89, 101, 103, 107, 109, 131, 137, 139, 149, 151, 163, 167, 179, 181, 191, 193, 197, 199, 211, 223, 227, 229, 239, 241, 251, 257, 269, 271, 281, 283, 311, 313, 317, 331, 347, 349, 359, 373, 379, 389 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS For twin primes congruent to {1, 11, 13, 17, 19, 29} mod 30 see A132247. Complement of A132237, primes congruent to 7 or 23 (mod 30), in the set of primes > 5. - M. F. Hasler, Nov 02 2013 LINKS Omar E. Pol, Prime numbers in a sieve with 30 columns FORMULA a(n) ~ 4/3 n log n. - Charles R Greathouse IV, Mar 08 2015 MATHEMATICA Select[Flatten[Table[30n + {1, 11, 13, 17, 19, 29}, {n, 0, 11}]], PrimeQ] (* Alonso del Arte, Nov 01 2013 *) Select[Prime@Range[100], MemberQ[{1, 11, 13, 17, 19, 29}, Mod[#, 30]] &] (* Vincenzo Librandi, Apr 05 2015 *) PROG (PARI) is(n)=isprime(n) && setsearch([1, 11, 13, 17, 19, 29], n%30) \\ Charles R Greathouse IV, Mar 08 2015 (MAGMA) [p: p in PrimesUpTo(500) | p mod 30 in {1, 11, 13, 17, 19, 29} ]; // Vincenzo Librandi, Apr 05 2015 CROSSREFS Cf. A000040, A001097, A039949, A132230, A132232-A132234, A132236, A132238-A132259, A230462. Sequence in context: A097358 A230462 A215927 * A132247 A186811 A038926 Adjacent sequences:  A229944 A229945 A229946 * A229948 A229949 A229950 KEYWORD nonn,easy AUTHOR Omar E. Pol, Oct 27 2013 STATUS approved

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