OFFSET
0,2
COMMENTS
Binomial transform is A085277.
LINKS
FORMULA
a(n)=16*2^n/3+(-1)^n/6-9/2.
G.f.: (2*x+1)^2 / ( (x-1)*(2*x-1)*(1+x) ). - R. J. Mathar, Nov 20 2014
MATHEMATICA
CoefficientList[Series[(1+2x)^2/((1-x^2)(1-2x)), {x, 0, 40}], x] (* or *) LinearRecurrence[{2, 1, -2}, {1, 6, 17}, 40] (* Harvey P. Dale, Sep 19 2016 *)
CROSSREFS
KEYWORD
easy,nonn
AUTHOR
Paul Barry, Jun 25 2003
EXTENSIONS
Missing parenthesis in definition corrected by Harvey P. Dale, Sep 19 2016
STATUS
approved