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A133293 First differences of A133292. 0
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 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Table of n, a(n) for n=0..104.

FORMULA

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

MATHEMATICA

Differences[PadRight[{}, 111, {1, 1, 2, 4, 7, 2, 7, 4, 2}]] (* Harvey P. Dale, Apr 29 2012 *)

CROSSREFS

Sequence in context: A096099 A019780 A227833 * A096289 A131295 A102642

Adjacent sequences:  A133290 A133291 A133292 * A133294 A133295 A133296

KEYWORD

sign

AUTHOR

Paul Curtz, Oct 17 2007

STATUS

approved

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Last modified December 18 02:18 EST 2014. Contains 252072 sequences.