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Search: id:A140581
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| 1, 1, 1, 2, 0, 1, 0, 1, 0, 1, 4, 0, 0, 0, 1, -3, 2, 1, 0, 0, 1, 6, 0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 2, 0, 0, 0, 0, 0, 1, -5, 4, 0, 0, 1, 0, 0, 0, 0, 1, 10, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, -3, 0, 20, 1, 0, 0, 0, 0, 0, 1, 12, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, -7, 6, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1
(list; table; graph; listen)
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OFFSET
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1,4
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COMMENT
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Row sums = A014963: (1, 2, 3, 2, 5, 1, 7, 2, 3, 1, 11, 1, 13, 1,...).
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FORMULA
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Mobius transform of triangle A140256 = A054525 * A140256; as infinite lower triangular matrices.
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EXAMPLE
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First few rows of the triangle are:
1;
1, 1;
2, 0, 1;
0, 1, 0, 1;
4, 0, 0, 0, 1;
-3, 2, 1, 0, 0, 1;
6, 0, 0, 0, 0, 0, 1;
0, 0, 0, 1, 0, 0, 0, 1;
0, 0, 2, 0, 0, 0, 0, 0, 1;
...
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CROSSREFS
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Cf. A140256, A054525.
Adjacent sequences: A140578 A140579 A140580 this_sequence A140582 A140583 A140584
Sequence in context: A127523 A116927 A137276 this_sequence A137277 A039975 A016253
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KEYWORD
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tabl,sign
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AUTHOR
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Gary W. Adamson and Mats Granvik (qntmpkt(AT)yahoo.com), May 17 2008
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