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A165898
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a(n) = sum of the quadratic nonresidues of n.
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3
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0, 0, 2, 5, 5, 7, 14, 23, 24, 20, 33, 52, 39, 49, 75, 106, 68, 93, 95, 155, 140, 121, 161, 234, 175, 156, 225, 294, 203, 285, 279, 424, 363, 272, 420, 534, 333, 361, 533, 645, 410, 553, 473, 748, 765, 575, 658, 1004, 686, 700, 867, 1027, 689, 882, 1100, 1288
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OFFSET
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1,3
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COMMENTS
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The table below shows n, the number of quadratic nonresidues (QNRs)
of n (A095972), the sum of the QNRs of n and the QNRs of n (A096013)
for n=1:10.
..n..num QNRs..sum QNRs.........QNRs
..1.........0.........0
..2.........0.........0
..3.........1.........2.........2
..4.........2.........5.........2..3
..5.........2.........5.........2..3
..6.........2.........7.........2..5
..7.........3........14.........3..5..6
..8.........5........23.........2..3..5..6..7
..9.........5........24.........2..3..5..6..8
.10.........4........20.........2..3..7..8
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LINKS
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C. H. Gribble, Table of n, a(n) for n=1,...,1000.
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CROSSREFS
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Cf. A096013
Sequence in context: A161180 A101858 A165917 * A194531 A092394 A027438
Adjacent sequences: A165895 A165896 A165897 * A165899 A165900 A165901
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KEYWORD
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nonn
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AUTHOR
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Christopher Hunt Gribble, Sep 29 2009
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STATUS
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approved
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