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A133293
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First differences of A133292.
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0
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0, 1, 2, 3, -5, 5, -3, -2, -1, 0, 1, 2, 3, -5, 5, -3, -2, -1, 0, 1, 2, 3, -5, 5, -3, -2, -1, 0, 1, 2, 3, -5, 5, -3, -2, -1, 0, 1, 2, 3, -5, 5, -3, -2, -1, 0, 1, 2, 3, -5, 5, -3, -2, -1, 0, 1, 2, 3, -5, 5, -3, -2, -1, 0, 1, 2, 3, -5, 5, -3, -2, -1, 0, 1, 2, 3, -5, 5, -3, -2, -1, 0, 1, 2, 3, -5, 5, -3, -2, -1, 0, 1, 2, 3, -5, 5, -3, -2, -1, 0, 1, 2, 3, -5, 5
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history;
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OFFSET
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0,3
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LINKS
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Table of n, a(n) for n=0..104.
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FORMULA
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a(n)=(1/9)*{-(n mod 9)-[(n+1) mod 9]-[(n+1) mod 9]+8*[(n+1) mod 9]-10*[(n+1) mod 9]+8*[(n+1) mod 9]-[(n+1) mod 9]-[(n+1) mod 9]-[(n+1) mod 9]}, with n>=0 - Paolo P. Lava, Oct 24 2007
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MATHEMATICA
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Differences[PadRight[{}, 111, {1, 1, 2, 4, 7, 2, 7, 4, 2}]] (* From Harvey P. Dale, Apr 29 2012 *)
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CROSSREFS
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Sequence in context: A082876 A096099 A019780 * A096289 A131295 A102642
Adjacent sequences: A133290 A133291 A133292 * A133294 A133295 A133296
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KEYWORD
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sign
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AUTHOR
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Paul Curtz, Oct 17 2007
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STATUS
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approved
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