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Search: id:A134381
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| 1, 2, 5, 15, 52, 205, 921, 4766, 28685, 201159, 1630840, 15071725, 156331161, 1794763970
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OFFSET
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0,2
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FORMULA
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Row sums of triangle A134380. Binomial transform of A051295.
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EXAMPLE
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a(3) = 15 = (1, 3, 3, 1) dot (1, 1, 2, 5) = (1, + 3 + 6 + 5), where A051295 = 1, 1, 2, 5, 15, 54, 235,...)
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CROSSREFS
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Cf. A134380, A051295.
Sequence in context: A108305 A099263 A000110 this_sequence A107589 A006790 A007548
Adjacent sequences: A134378 A134379 A134380 this_sequence A134382 A134383 A134384
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KEYWORD
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nonn
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AUTHOR
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Gary W. Adamson (qntmpkt(AT)yahoo.com), Oct 22 2007
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