OFFSET
0,2
COMMENTS
Binomial transform is A080926 (without leading zero).
LINKS
FORMULA
G.f.: (1+5*x+4*x^2)/((1+2*x)*(1-2*x)).
E.g.f.: (9*exp(2*x)-exp(-2*x))/4-exp(0).
a(n) = (9*2^n-(-2)^n)/4-0^n.
MATHEMATICA
Join[{1}, LinearRecurrence[{0, 4}, {5, 8}, 30]] (* Harvey P. Dale, Sep 12 2013 *)
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Paul Barry, May 30 2003
STATUS
approved