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A073793
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Replace 6^k with (-6)^k in base 6 expansion of n.
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8
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0, 1, 2, 3, 4, 5, -6, -5, -4, -3, -2, -1, -12, -11, -10, -9, -8, -7, -18, -17, -16, -15, -14, -13, -24, -23, -22, -21, -20, -19, -30, -29, -28, -27, -26, -25, 36, 37, 38, 39, 40, 41, 30, 31, 32, 33, 34, 35, 24, 25, 26, 27, 28, 29, 18, 19, 20, 21, 22, 23, 12, 13, 14, 15, 16, 17, 6, 7, 8, 9, 10, 11
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OFFSET
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0,3
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COMMENTS
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Base 6 representation for n converted from base -6 to base 10.
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LINKS
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FORMULA
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a(6*k+m) = -6*a(k)+m for 0 <= m < 6. - Chai Wah Wu, Jan 16 2020
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MATHEMATICA
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f[n_Integer, b_Integer] := Block[{l = IntegerDigits[n]}, Sum[l[[ -i]]*(-b)^(i - 1), {i, 1, Length[l]}]]; a = Table[ FromDigits[ IntegerDigits[n, 6]], {n, 0, 80}]; b = {}; Do[b = Append[b, f[a[[n]], 6]], {n, 1, 80}]; b
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CROSSREFS
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KEYWORD
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base,easy,sign
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AUTHOR
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STATUS
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approved
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