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Search: id:A143467
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| 1, 3, -1, 5, 0, -1, 7, -3, 0, 0, 9, 0, 0, 0, -1, 11, -5, -3, 0, 0, 1, 13, 0, 0, 0, 0, 0, -1, 15, -7, 0, 0, 0, 0, 0, 0, 17, 0, -5, 0, 0, 0, 0, 0, 0, 19, -9, 0, 0, -3, 0, 0, 0, 0, 1, 21, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 23, -11, -7, 0, 0, 3, 0, 0, 0, 0, 0, 0, 25, 0, 0, 0, 0, 0, 0, 0, 0, 0, 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 = A140434: (1, 2, 4, 4, 8, 4, 12, 8, 12,...).
Right border = mu(n), A008683: (1, -1, -1, 0, -1, 1,...).
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FORMULA
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Triangle read by rows, A143315 * A128407, 1<=k<=n
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EXAMPLE
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First few rows of the triangle =
1;
3, -1;
5, 0, -1;
7, -3, 0, 0;
9, 0, 0, 0, -1;
11, -5, -3, 0, 0, 1;
13, 0, 0, 0, 0, 0, -1;
...
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CROSSREFS
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Cf. A143315, A128407, A008683, A143467.
Sequence in context: A016734 A125846 A143677 this_sequence A143315 A120444 A094919
Adjacent sequences: A143464 A143465 A143466 this_sequence A143468 A143469 A143470
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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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