OFFSET
0,4
LINKS
Index entries for linear recurrences with constant coefficients, signature (0,3,0,-3,0,1).
FORMULA
O.g.f.: ogf217(x^2) - 2*x*ogf217(x^2) = x^2/(1-x^2)^3 - 2*x^3/(1-x^2) = x^2*(1 - 2*x) / (1 - x^2)^3. - Georg Fischer, Nov 16 2022
MAPLE
MATHEMATICA
CoefficientList[Series[x^2*(1 - 2*x)/(1 - x^2)^3, {x, 0, 35}], x] (* Georg Fischer, Nov 16 2022 *)
LinearRecurrence[{0, 3, 0, -3, 0, 1}, {0, 0, 1, -2, 3, -6}, 70] (* Harvey P. Dale, Jul 07 2024 *)
CROSSREFS
KEYWORD
sign,easy
AUTHOR
Paul Curtz, Sep 28 2007
EXTENSIONS
More terms from R. J. Mathar, Oct 26 2007
STATUS
approved