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A290402
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Primes congruent to {7, 17} mod 24.
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1
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7, 17, 31, 41, 79, 89, 103, 113, 127, 137, 151, 199, 223, 233, 257, 271, 281, 353, 367, 401, 439, 449, 463, 487, 521, 569, 593, 607, 617, 631, 641, 727, 751, 761, 809, 823, 857, 881, 919, 929, 953, 967, 977, 991, 1039, 1049, 1063, 1087, 1097, 1193, 1217, 1231
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OFFSET
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1,1
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COMMENTS
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All these primes do not divide any number of the form 3*2^k - 1. Therefore, they are not in A001915.
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LINKS
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FORMULA
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MATHEMATICA
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Select[Prime@Range[202], MemberQ[{7, 17}, Mod[#, 24]] &]
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PROG
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(Magma) [p: p in PrimesUpTo(1231) | p mod 24 in {7, 17}];
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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