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A270799
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Artiads (A001583) congruent to 1 mod 50 and having 2 as a quintic residue.
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1
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3251, 4751, 14251, 17401, 21401, 27551, 32051, 32251, 36151, 36451, 42451, 51001, 52501, 54101, 55001, 56501, 59051, 60101, 61051, 83401, 104801, 113051, 116101, 119851, 121351, 170701, 174901, 178501, 178601, 179051, 182101, 185951, 190301, 202751, 213901
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OFFSET
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1,1
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LINKS
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E. Lehmer, Artiads characterized, J. Math. Anal. Appl. 15 1966 118-131 [annotated and corrected scanned copy]
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PROG
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(Sage) def isa(n) : return n % 50 == 1 and is_prime(n) and 2.powermod((n-1)//5, n) == 1 and fibonacci((n - 1)//5) % n == 0 # Eric M. Schmidt, Apr 01 2016
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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