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A035302 a(n+1)=2a(n)-4a(n-1)+4a(n-2). 1
0, 1, -2, -8, -4, 16, 16, -48, -96, 64, 320, 0, -1024, -768, 2560, 4096, -5120, -16384, 4096, 53248, 24576, -147456, -180224, 327680, 786432, -458752, -2752512, -524288, 8126464, 7340032, -19922944, -36700160, 35651584 (list; graph; refs; listen; history; internal format)
OFFSET

0,3

FORMULA

G.f.: (x-4*x^2)/(1-2*x+4*x^2-4*x^3).

CROSSREFS

Cf. A007420.

Sequence in context: A192034 A175181 A110003 * A104772 A088156 A019193

Adjacent sequences:  A035299 A035300 A035301 * A035303 A035304 A035305

KEYWORD

sign

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com).

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Last modified February 15 17:13 EST 2012. Contains 205828 sequences.