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Search: id:A131031
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| 1, 3, 1, 6, 3, 1, 12, 6, 3, 1, 24, 12, 6, 3, 1, 48, 24, 12, 6, 3, 1, 96, 48, 24, 12, 6, 3, 1, 96, 48, 24, 12, 6, 3, 1
(list; table; graph; listen)
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OFFSET
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0,2
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COMMENT
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Row sums = A033484: (1, 4, 10, 22, 46, 94, 190,...)
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FORMULA
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A097806 (pairwise operator) * A130321: (1; 2,1; 4,2,1;...) as infinite lower triangular matrices. A003945 (1, 3, 6, 12, 24,...) in every column.
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EXAMPLE
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First few rows of the triangle are:
1;
3, 1;
6, 3, 1;
12, 6, 3, 1;
24, 12, 6, 3, 1;
48, 24, 12, 6, 3, 1;
...
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CROSSREFS
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Cf. A033484, A097806, A130321, A003945.
Sequence in context: A133093 A065567 A100861 this_sequence A130452 A133085 A039805
Adjacent sequences: A131028 A131029 A131030 this_sequence A131032 A131033 A131034
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KEYWORD
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nonn,tabl
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AUTHOR
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Gary W. Adamson (qntmpkt(AT)yahoo.com), Jun 09 2007
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