OFFSET
0,2
LINKS
FORMULA
Conjectures from Chai Wah Wu, Mar 05 2021: (Start)
a(n) = 2*a(n-1) - a(n-2) for n > 11.
G.f.: (333*x^11 + 19*x^4 - 19*x^3 + 19*x^2 + 2*x + 1)/(x - 1)^2. (End)
CROSSREFS
KEYWORD
nonn
AUTHOR
STATUS
approved