OFFSET
1,4
LINKS
Index entries for linear recurrences with constant coefficients, signature (0, 0, 7, 0, 0, 1, 0, 0, 1).
FORMULA
Empirical g.f.: -2*x^4*(x^4-x^3+2*x^2+x+1) / (x^9+x^6+7*x^3-1). - Colin Barker, Sep 17 2013
MATHEMATICA
Select[Join[{0, 0, 0}, LinearRecurrence[{0, 1, 1}, {1, 1, 1}, 100]], EvenQ] (* Harvey P. Dale, May 11 2011 *)
LinearRecurrence[{0, 0, 7, 0, 0, 1, 0, 0, 1}, {0, 0, 0, 2, 2, 4, 12, 16, 28}, 37] (* Ray Chandler, Mar 02 2024 *)
CROSSREFS
KEYWORD
easy,nonn
AUTHOR
Omar E. Pol, Nov 11 2007
EXTENSIONS
More terms from Harvey P. Dale, May 11 2011.
STATUS
approved