OFFSET
0,1
COMMENTS
2nd column of A210637.
LINKS
Index entries for linear recurrences with constant coefficients, signature (4,-2,-4,-1)
MATHEMATICA
CoefficientList[Series[(2-x^2)/(x^2+2*x-1)^2, {x, 0, 40}], x] (* or *) LinearRecurrence[{4, -2, -4, -1}, {2, 8, 27, 84}, 40] (* Harvey P. Dale, Feb 24 2017 *)
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
R. J. Mathar, Aug 08 2015
STATUS
approved