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Search: id:A127953
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| 1, -2, 2, -2, -1, 3, -2, -4, 2, 4, -2, -7, -3, 7, 5, -2, -10, -12, 4, 14, 6, -2, -13, -25, -10, 20, 23, 7, -2, -16, -42, -40, 10, 48, 34, 8, -2, -19, -63, -91, -35, 63, 91, 47, 9, -2, -22, -88, -168, -140, 28, 168, 152, 62, 10
(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 = (1, 0, 0, 0,...)
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FORMULA
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A097805 * A126615 as infinite lower triangular matrices.
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EXAMPLE
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First few rows of the triangle are:
1;
-2, 2;
-2, -1, 3;
-2, -4, 2, 4;
-2, -7, -3, 7, 5;
-2, -10, -12, 4, 14, 6;
-2, -13, -25, -10, 20, 23, 7;
...
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CROSSREFS
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Cf. A097805, A126615.
Sequence in context: A037180 A091222 A064659 this_sequence A130267 A060610 A017125
Adjacent sequences: A127950 A127951 A127952 this_sequence A127954 A127955 A127956
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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 09 2007
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