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A129223
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Residues of the Lucas - Lehmer primality test for M(19) = 524287.
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8
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4, 14, 194, 37634, 218767, 510066, 386344, 323156, 218526, 504140, 103469, 417706, 307417, 382989, 275842, 85226, 523263, 0
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OFFSET
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0,1
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COMMENTS
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Since a(17) = 0, M(19) = 524287 is prime.
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LINKS
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FORMULA
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a(0) = 4, a(n) = a(n-1)^2 mod 2^p-1. Last term: a(p-2).
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EXAMPLE
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a(17) = 523263^2 - 2 mod 524287 = 0.
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CROSSREFS
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KEYWORD
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fini,full,nonn
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AUTHOR
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STATUS
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approved
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