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Search: id:A140703
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| 1, 4, 1, 7, 1, 1, 13, 4, 1, 1, 16, 4, 1, 1, 1, 25, 7, 4, 1, 1, 1, 28, 7, 4, 1, 1, 1, 1, 38, 13, 4, 4, 1, 1, 1, 1, 44, 13, 7, 4, 1, 1, 1, 1, 1, 53, 16, 7, 4, 4, 1, 1, 1, 1, 1, 56, 16, 7, 4, 4, 1, 1, 1, 1, 1, 1
(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 = A061202: (1, 5, 9, 19, 23, 39,...).
Leftmost column = A061201: (1, 4, 7, 13, 16, 25, 28,...).
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FORMULA
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A000012 * A051731^3 as infinite lower triangular matrices, where A000012 = [1; 1,1; 1,1,1;...] and A051731 = the inverse Mobius transform.
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EXAMPLE
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First few rows of the triangle are:
1;
4, 1;
7, 1, 1;
13, 4, 1, 1;
16, 4, 1, 1, 1;
25, 7, 4, 1, 1, 1;
28, 7, 4, 1, 1, 1, 1;
38, 13, 4, 4, 1, 1, 1, 1;
...
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CROSSREFS
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Cf. A051731, A061202, A061201.
Sequence in context: A140895 A126150 A096966 this_sequence A157259 A046551 A065814
Adjacent sequences: A140700 A140701 A140702 this_sequence A140704 A140705 A140706
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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 24 2008
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