OFFSET
0,1
LINKS
Index entries for linear recurrences with constant coefficients, signature (2,1,-2,-1).
FORMULA
MATHEMATICA
CoefficientList[Series[(34 + 21*x)/(1 - x - x^2)^2, {x, 0, 30}], x] (* Wesley Ivan Hurt, Feb 16 2017 *)
LinearRecurrence[{2, 1, -2, -1}, {34, 89, 212, 445}, 30] (* Harvey P. Dale, Dec 22 2022 *)
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Wolfdieter Lang, Feb 15 2002
STATUS
approved