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A078063
Expansion of (1-x)/(1+2*x+x^2-2*x^3).
0
1, -3, 5, -5, -1, 17, -43, 67, -57, -39, 269, -613, 879, -607, -891, 4147, -8617, 11305, -5699, -17141, 62591, -119439, 142005, -39389, -302105, 927609, -1631891, 1731963, 23183, -5042111, 13524965, -21961453, 20313719, 8383945, -81004515, 194252523, -290732641, 225203729
OFFSET
0,2
MATHEMATICA
CoefficientList[Series[(1-x)/(1+2*x+x^2-2*x^3), {x, 0, 40}], x] (* or *) LinearRecurrence[{-2, -1, 2}, {1, -3, 5}, 40] (* Harvey P. Dale, Mar 03 2018 *)
CROSSREFS
Sequence in context: A198492 A077860 A261340 * A373304 A019944 A320477
KEYWORD
sign,easy
AUTHOR
N. J. A. Sloane, Nov 17 2002
STATUS
approved