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A141898
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Primes congruent to 20 mod 21.
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3
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41, 83, 167, 251, 293, 419, 461, 503, 587, 797, 839, 881, 1049, 1091, 1217, 1259, 1301, 1427, 1511, 1553, 1637, 1721, 1847, 1889, 1931, 1973, 2099, 2141, 2267, 2309, 2351, 2393, 2477, 2687, 2729, 2897, 2939, 3023, 3191, 3359, 3527, 3779, 3821, 3863, 3947
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listen;
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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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PROG
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(Magma) [ p: p in PrimesUpTo(5000) | p mod 21 eq 20 ]; // Vincenzo Librandi, Apr 05 2011
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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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