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 A123985 Numbers n for which 12n+1, 12n+5, 12n+7 and 12n+11 are primes. 3
 1, 3, 8, 38, 71, 73, 108, 166, 288, 376, 656, 871, 1156, 1338, 1618, 1751, 1776, 1856, 1921, 1963, 2311, 2418, 2801, 3501, 3538, 3648, 3818, 4266, 4541, 4611, 4651, 5076, 6723, 6751, 7388, 7533, 7621, 7698, 7738, 7796, 8083, 8193, 9073, 9243, 9418, 9516 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 LINKS T. D. Noe, Table of n, a(n) for n=1..1000 MATHEMATICA Select[Range[10^4], And @@ PrimeQ /@ ({1, 5, 7, 11} + 12#) &] (* Ray Chandler, Nov 22 2006 *) PROG (PARI) P=isprime; for(n=0, 10^5, if(P(12*n+1) && P(12*n+5) && P(12*n+7) && P(12*n+11), print1(n", "))); \\ Joerg Arndt, Jul 11 2014 CROSSREFS Cf. A110801. Sequence in context: A024039 A147523 A123981 * A219953 A286075 A089066 Adjacent sequences:  A123982 A123983 A123984 * A123986 A123987 A123988 KEYWORD nonn,changed AUTHOR Artur Jasinski, Oct 30 2006 STATUS approved

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Last modified October 23 14:11 EDT 2019. Contains 328345 sequences. (Running on oeis4.)