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A144735
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Square of triangle A054533
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1
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1, -2, 1, -2, -3, 4, 2, -6, 0, 4, -3, -2, -6, -6, 16, 5, 0, -9, -5, 6, 4, -5, -2, -5, -6, -11, -8, 36, 0, 8, 0, -24, 0, 0, 0, 16, 0, 6, -18, 3, -3, -24, 0, 0, 36, 7, 0, 8, 2, -34, -10, 10, -8, 10, 16
(list;
table;
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refs;
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history;
text;
internal format)
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OFFSET
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1,2
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COMMENTS
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Row sums = A008683, mu(n).
Right border = squares of phi(n).
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LINKS
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Table of n, a(n) for n=1..55.
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FORMULA
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A054533^2, as an infinite lower triangular matrix.
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EXAMPLE
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First few rows of the triangle =
1;
-2, 1;
-2, -3, 4;
2, -6, 0, 4;
-3, -2, -6, -6, 16;
5, 0, -9, -5, 6, 4;
-5, -2, -5, -6, -11, -8, 36;
0, 8, 0, -24, 0, 0, 0, 16;
0, 6, -18, 3, -3, -24, 0, 0, 36;
7, 0, 8, 2, -34, -10, 10, -8, 10, 16;
...
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CROSSREFS
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A054533, Cf. A008683
Sequence in context: A033787 A165073 A176846 * A202275 A030307 A175792
Adjacent sequences: A144732 A144733 A144734 * A144736 A144737 A144738
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KEYWORD
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tabl,sign
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AUTHOR
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Gary W. Adamson, Sep 20 2008
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STATUS
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approved
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