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Search: id:A130298
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| 1, 5, 2, 12, 4, 3, 22, 6, 5, 4, 35, 8, 7, 6, 5, 51, 10, 9, 8, 7, 6, 70, 12, 11, 10, 9, 8, 7, 92, 14, 13, 12, 11, 10, 9, 8, 117, 16, 15, 14, 13, 12, 11, 10, 9, 145, 18, 17, 16, 15, 14, 13, 12, 11, 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 = A003215: (1, 7, 19, 37, 61, 91,...). Left border = A000326: (1, 5, 12, 22, 35,...). A130299 = A130296 * A051340.
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FORMULA
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A051340 * A130296 as infinite lower triangular matrices.
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EXAMPLE
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First few rows of the triangle are:
1;
5, 2;
12, 4, 3;
22, 6, 5, 4;
35, 8, 7, 6, 5;
51, 10, 9, 8, 7, 6;
70, 12, 11, 10, 9, 8, 7;
...
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CROSSREFS
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Cf. A051340, A130296, A003215, A000326.
Adjacent sequences: A130295 A130296 A130297 this_sequence A130299 A130300 A130301
Sequence in context: A074642 A131784 A065268 this_sequence A128116 A082153 A013946
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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), May 20 2007
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