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A325736
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First term of n-th difference sequence of (floor(2e*k)), k >= 0.
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2
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5, 0, 1, -3, 7, -15, 31, -63, 126, -245, 455, -791, 1253, -1715, 1715, 0, -6419, 24157, -67081, 162925, -364609, 767977, -1535953, 2922679, -5273325, 8931521, -13886641, 18775981, -18399241, -2035799, 79594559, -300540195, 855744647, -2151510735, 5025003039
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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[2E*n], {n, 0, 50}], n]], {n, 1, 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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