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Search: id:A127778
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| 1, 1, 6, 1, 6, 18, 1, 6, 18, 40, 1, 6, 18, 40, 75, 1, 6, 18, 40, 75, 126, 1, 6, 18, 40, 75, 126, 196, 1, 6, 18, 40, 75, 126, 196, 288
(list; table; graph; listen)
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OFFSET
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1,3
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COMMENT
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Row sums = A001297: (1, 7, 25, 65, 140,...) A127777 = A127773 * A002260
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FORMULA
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A002260 * A127773 as infinite lower triangular matrices. n-th row is comprised first n terms of A002411: (1, 6, 18, 40, 75,...).
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EXAMPLE
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First few rows of the triangle are:
1;
1, 6;
1, 6, 18;
1, 6, 18, 40;
1, 6, 18, 40, 75;
...
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CROSSREFS
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Cf. A002411, A001296, A127773, A002260.
Sequence in context: A157292 A159828 A131114 this_sequence A076714 A113811 A126168
Adjacent sequences: A127775 A127776 A127777 this_sequence A127779 A127780 A127781
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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), Jan 28 2007
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