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A028766
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Nonsquares mod 53.
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1
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2, 3, 5, 8, 12, 14, 18, 19, 20, 21, 22, 23, 26, 27, 30, 31, 32, 33, 34, 35, 39, 41, 45, 48, 50, 51
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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1,1
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LINKS
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Table of n, a(n) for n=1..26.
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MATHEMATICA
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Complement[Range[0, 52], PowerMod[Range[53], 2, 53]] (* Alonso del Arte, May 03 2020 *)
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PROG
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(Scala) (0 to 52).diff((1 to 53).map(n => n * n % 53)) // Alonso del Arte, May 03 2020
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CROSSREFS
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Cf. A010414.
Sequence in context: A067288 A308075 A211181 * A022487 A305377 A062489
Adjacent sequences: A028763 A028764 A028765 * A028767 A028768 A028769
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KEYWORD
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nonn,fini,full,easy
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AUTHOR
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N. J. A. Sloane.
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STATUS
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approved
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