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Search: id:A128316
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| 1, 1, 1, 3, -1, 1, 2, 3, -2, 1, 4, -1, 4, -3, 1, 4, 3, -5, 7, -4, 1, 6, -3, 10, -13, 11, -5, 4, 8, -14, 23, -24, 16, -6, 1, 7, -2, 15, -33, 46, -40, 22, -7, 1, 7, 4, -15, 47, -79, 86, -62, 29, -8, 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 = n; A128316 * [1,2,3...] = A000034: [1,2,1,2,...]. Left column = A059851: (1, 1, 3, 2, 4, 4, 6, 4, 7, 7,...)
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FORMULA
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A000012 * A128315 as infinite lower triangular matrices.
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EXAMPLE
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First few rows of the triangle are:
1;
1, 1;
3, -1, 1;
2, 3 -2, 1;
4, -1, 4, -3, 1;
4, 3, -5, 7, -4, 1;
6, -3, 10, -13, 11, -5, 1;
4, 8, -14, 23, -24, 16, -6, 1;
...
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CROSSREFS
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Cf. A128315, A000034, A000012, A059851.
Sequence in context: A064048 A016464 A030727 this_sequence A065836 A078712 A035254
Adjacent sequences: A128313 A128314 A128315 this_sequence A128317 A128318 A128319
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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), Feb 25 2007
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