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Search: id:A143469
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| 1, 4, -1, 9, -1, -1, 16, -4, 1, 0, 25, -4, -1, 0, -1, 36, -9, -4, 0, -1, 1, 49, -9, -4, 0, -1, 1, -1, 64, -16, -4, 0, -1, 1, -1, 0, 81, -16, -9, 0, -1, 1, -1, 0, 0, 100, -25, -9, 0, -4, 1, -1, 0, 0, 1
(list; table; graph; listen)
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OFFSET
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1,2
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COMMENT
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Row sums = A018805: (1, 3, 7, 11, 19, 23, 35,...).
Right border = mu(n), A008683
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FORMULA
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Triangle read by rows, A000012 * A143315 * A128407, 1<=k<=1
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EXAMPLE
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First few rows of the triangle =
1;
4, -1;
9, -1, -1;
16, -4, -1, 0;
25, -4, -1, 0, -1;
36, -9, -4, 0, -1, 1;
49, -9, -4, 0, -1, 1, -1;
..
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CROSSREFS
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Cf. A143315, A128407, A018805, A008683.
Sequence in context: A036177 A141680 A141681 this_sequence A123726 A138675 A080103
Adjacent sequences: A143466 A143467 A143468 this_sequence A143470 A143471 A143472
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KEYWORD
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tabl,sign
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AUTHOR
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Gary W. Adamson (qntmpkt(AT)yahoo.com), Aug 17 2008
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