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Search: id:A130055
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| 1, 0, 2, -1, 0, 3, -1, 0, 0, 4, -3, 0, 0, 0, 5, 0, -2, 0, 0, 0, 6, -5, 0, 0, 0, 0, 0, 7, -2, -2, 0, 0, 0, 0, 0, 8, -3, 0, -3, 0, 0, 0, 0, 0, 9, 0, -6, 0, 0, 0, 0, 0, 0, 0, 10
(list; table; graph; listen)
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OFFSET
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1,3
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COMMENT
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Row sums = d(n), A000005: (1, 2, 2, 3, 2, 4, 2, 4, 3, 4,...). Left column = A130054: (1, 0, -1, -1, -3, 0, -5, -2, -3, 0,...).
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FORMULA
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A129691 * A127093 as infinite lower triangular matrices.
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EXAMPLE
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First few rows of the triangle are:
1;
0, 2;
-1, 0, 3;
-1, 0, 0, 4;
-3, 0, 0, 0, 5;
0, -2, 0, 0, 0, 6;
-5, 0, 0, 0, 0, 0, 7;
...
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CROSSREFS
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Cf. A129691, A127093, A000005, A130054.
Sequence in context: A082754 A063173 A120111 this_sequence A127013 A117362 A113214
Adjacent sequences: A130052 A130053 A130054 this_sequence A130056 A130057 A130058
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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), May 04 2007
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