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A142195
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Primes congruent to 31 mod 40.
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1
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31, 71, 151, 191, 271, 311, 431, 631, 751, 911, 991, 1031, 1151, 1231, 1471, 1511, 1831, 1871, 1951, 2111, 2311, 2351, 2551, 2591, 2671, 2711, 2791, 3191, 3271, 3391, 3511, 3631, 3671, 3911, 4111, 4231, 4271, 4391, 4591, 4751, 4831, 4871, 4951, 5231, 5351
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OFFSET
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1,1
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LINKS
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FORMULA
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MATHEMATICA
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Select[Prime[Range[2000]], MemberQ[{31}, Mod[#, 40]]&] (* Vincenzo Librandi, Aug 22 2012 *)
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PROG
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(Magma) [p: p in PrimesUpTo(7000) | p mod 40 eq 31 ]; // Vincenzo Librandi, Aug 22 2012
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CROSSREFS
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KEYWORD
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nonn,easy
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AUTHOR
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STATUS
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approved
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