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A325674
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First term of n-th difference sequence of (floor(k*r)), r = sqrt(8), k >= 0.
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3
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2, 1, -1, 1, -1, 0, 5, -20, 55, -125, 251, -462, 803, -1364, 2365, -4367, 8735, -18564, 40409, -87380, 184603, -379049, 758099, -1486674, 2884775, -5592404, 10919089, -21572459, 43144919, -87087000, 176565485, -357913940, 723002335, -1453179125, 2906358250
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OFFSET
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1,1
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LINKS
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MATHEMATICA
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Table[First[Differences[Table[Floor[Sqrt[8]*n], {n, 0, 30}], n]], {n, 0, 50}]
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CROSSREFS
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KEYWORD
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easy,sign
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AUTHOR
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STATUS
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approved
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