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A053452
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Multiplicative order of 9 mod n, where gcd(n, 9) = 1.
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9
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1, 1, 1, 2, 3, 1, 2, 5, 3, 3, 2, 8, 9, 2, 5, 11, 10, 3, 3, 14, 15, 4, 8, 6, 9, 9, 2, 4, 21, 5, 11, 23, 21, 10, 3, 26, 10, 3, 14, 29, 5, 15, 8, 6, 11, 8, 6, 35, 6, 9, 9, 15, 39, 2, 4, 41, 8, 21, 5, 44, 3, 11, 23, 18, 24, 21, 10, 50, 17, 3, 26, 53, 27, 10, 6, 56, 22, 14, 29, 24, 5, 5, 15, 50
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OFFSET
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1,4
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COMMENTS
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LINKS
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MATHEMATICA
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MultiplicativeOrder[9, #] & /@ Select[ Range@ 125, GCD[9, #] == 1 &] (* Robert G. Wilson v, Apr 05 2011 *)
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PROG
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(PARI) lista(nn) = {for(n=1, nn, if (gcd(n, 9) == 1, print1(znorder(Mod(9, n)), ", ")); ); } \\ Michel Marcus, Feb 09 2015
(GAP) List(Filtered([1..210], n->Gcd(n, 9)=1), n->OrderMod(9, n)); # Muniru A Asiru, Feb 17 2019
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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