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Search: id:A128151
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| 1, 3, 2, 3, 5, 3, 3, 5, 7, 4, 3, 5, 7, 9, 5, 3, 5, 7, 9, 11, 6, 3, 5, 7, 9, 11, 13, 7, 3, 5, 7, 9, 11, 13, 15, 8, 3, 5, 7, 9, 11, 13, 15, 17, 9, 3, 5, 7, 9, 11, 13, 15, 17, 19, 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 = A028387: (1, 5, 11, 19, 29, 41,...)
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FORMULA
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A002260 * A097806 as infinite lower triangular matrices. a(1) = 1; n-th row has (n-1) terms in the sequence (3, 5, 7, 9,...) followed by "n".
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EXAMPLE
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First few rows of the triangle are:
1;
3, 2;
3, 5, 3;
3, 5, 7, 4;
3, 5, 7, 9, 5;
...
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CROSSREFS
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Cf. A002260, A097806, A028387.
Sequence in context: A029618 A112427 A098229 this_sequence A071166 A140358 A130727
Adjacent sequences: A128148 A128149 A128150 this_sequence A128152 A128153 A128154
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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), Feb 16 2007
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