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A045391
Primes congruent to {1, 2} mod 7.
4
2, 23, 29, 37, 43, 71, 79, 107, 113, 127, 149, 163, 191, 197, 211, 233, 239, 281, 317, 331, 337, 359, 373, 379, 401, 421, 443, 449, 457, 463, 491, 499, 541, 547, 569, 617, 631, 653, 659, 673, 701, 709, 743, 751
OFFSET
1,1
LINKS
MATHEMATICA
Select[Prime[Range[300]], MemberQ[{1, 2}, Mod[#, 7]]&] (* Vincenzo Librandi, Aug 10 2012 *)
Select[Flatten[#+{1, 2}&/@(7*Range[0, 120])], PrimeQ] (* Harvey P. Dale, Sep 15 2019 *)
PROG
(Magma) [p: p in PrimesUpTo(1000) | p mod 7 in [1, 2]]; // Vincenzo Librandi, Aug 10 2012
CROSSREFS
KEYWORD
nonn,easy
STATUS
approved