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Search: id:A130887
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OFFSET
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1,2
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COMMENT
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A127093 * A007318^(-1) * [1/1, 1/2, 1/3,...] = A048272: (1, 0, 2, -1, 2, 0, 2, -2,...).
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FORMULA
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A127093 * A007318 * (the harmonic series); where A007318 * [1/1, 1/2, 1/3,...] = [1/1, 3/2, 7/3, 15/4,...].
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EXAMPLE
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a(4) = 19 = (1/1, 3/2, 7/3, 15/4) dot (1, 2, 0, 4) = (1 + 3 + 0 + 15); where (1, 2, 0, 4) = row 4 of A127093.
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CROSSREFS
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Cf. A127093, A001047, A048272.
Sequence in context: A075310 A075797 A104137 this_sequence A049933 A129362 A083579
Adjacent sequences: A130884 A130885 A130886 this_sequence A130888 A130889 A130890
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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), Jun 07 2007
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