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A078056 Expansion of (1-x)/(1+2*x-x^2-x^3). 1
1, -3, 7, -16, 36, -81, 182, -409, 919, -2065, 4640, -10426, 23427, -52640, 118281, -265775, 597191, -1341876, 3015168, -6775021, 15223334, -34206521, 76861355, -172705897, 388066628, -871977798, 1959316327, -4402543824, 9892426177, -22228079851, 49946042055, -112227737784 (list; graph; refs; listen; history; internal format)
OFFSET

0,2

COMMENTS

Absolute values of pairwise sums are in A052534.

CROSSREFS

Sequence in context: A077852 A020746 A033303 * A173761 A124671 A188626

Adjacent sequences:  A078053 A078054 A078055 * A078057 A078058 A078059

KEYWORD

sign

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com), Nov 17 2002

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Last modified February 17 06:27 EST 2012. Contains 205998 sequences.