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Search: id:A137651
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| 1, 0, 1, 0, 3, 1, 0, 6, 6, 1, 0, 15, 25, 10, 1, 0, 27, 89, 65, 15, 1, 0, 63, 301, 350, 140, 21, 1, 0, 120, 960, 1700, 1050, 266, 28, 1, 0, 252, 3024, 7770, 6951, 2646, 462, 36, 1
(list; table; graph; listen)
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OFFSET
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1,5
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COMMENT
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Row sums = A082951: (1, 1, 4, 13, 51, 197,...).
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FORMULA
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A054525 * A008277 as infinite lower triangular matrices. A054525 = Mobius transform, A008277 = Stirling2 triangle.
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EXAMPLE
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First few rows of the triangle are:
1;
0, 1;
0, 3, 1;
0, 6, 6, 1;
0, 15, 25, 10, 1;
0, 27, 89, 65, 15, 1;
0, 63, 301, 350, 140, 21, 1;
0, 120, 960, 1700, 1050, 266, 28, 1;
...
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CROSSREFS
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Cf. A054525, A008277, A082951.
Sequence in context: A004590 A058150 A058151 this_sequence A058152 A058140 A074678
Adjacent sequences: A137648 A137649 A137650 this_sequence A137652 A137653 A137654
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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 01 2008
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