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A121890
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Least m such that (n mod m) > (n^2 mod m).
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0
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3, 4, 5, 3, 4, 4, 3, 5, 4, 3, 7, 7, 3, 4, 9, 3, 4, 4, 3, 8, 4, 3, 5, 7, 3, 4, 8, 3, 4, 4, 3, 7, 4, 3, 8, 8, 3, 4, 7, 3, 4, 4, 3, 7, 4, 3, 7, 5, 3, 4, 7, 3, 4, 4, 3, 9, 4, 3, 7, 7, 3, 4, 5, 3, 4, 4, 3, 5, 4, 3, 11, 7, 3, 4, 7, 3, 4, 4, 3, 7, 4, 3, 5, 8, 3, 4, 7, 3, 4, 4, 3, 8, 4, 3, 7, 7, 3, 4, 8, 3, 4, 4, 3, 9, 4
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OFFSET
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2,1
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LINKS
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EXAMPLE
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n=100: a(100) = 8 because n=100 == 2 mod 8, n^2=100000 == 0 mod 8 and 8 is the least m such that 100 > 100000 mod m.
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MATHEMATICA
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s={}; Do[n1=n; n2=n^2; Do[If[Mod[n1, m]>Mod[n2, m], AppendTo[s, {n, n1, n2, m}]; Break[]], {m, 2, 200}], {n, 2, 120}]; Last/@s
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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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