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A131119 Alternate A000096 and -A000217. Differences: A131723 . 0
0, 0, 2, -1, 5, -3, 9, -6, 14, -10, 20, -15, 27, -21, 35, -28, 44, -36, 54, -45, 65, -55, 77, -66, 90, -78, 104 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Table of n, a(n) for n=0..26.

CROSSREFS

Sequence in context: A175330 A085261 A179218 * A114901 A194809 A113178

Adjacent sequences:  A131116 A131117 A131118 * A131120 A131121 A131122

KEYWORD

sign

AUTHOR

Paul Curtz, Sep 24 2007

STATUS

approved

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Last modified June 16 10:03 EDT 2019. Contains 324152 sequences. (Running on oeis4.)