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A093372
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Composite k such that Fibonacci(k) == Legendre(k,5) == 1 (mod k).
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4
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4181, 5474, 6479, 6721, 13201, 15251, 27071, 34561, 44099, 47519, 51841, 54839, 64079, 64681, 65471, 67861, 68251, 72831, 78089, 90061, 96049, 97921, 109871, 118441, 139359, 146611, 157079, 163081, 168299, 186961, 196559, 197209, 219781
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OFFSET
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1,1
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LINKS
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MATHEMATICA
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Select[ Range[ 2, 100000 ], ! PrimeQ[ # ] && Mod[ Fibonacci[ # ] - JacobiSymbol[ #, 5 ], # ] == 0 && JacobiSymbol[ #, 5 ] == 1 & ]
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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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