OFFSET
0,2
LINKS
FORMULA
a(n) = A067402(n+3, 3).
a(n) = 7*16^(n-1), n>=1, a(0) = 1.
G.f.: (1-9*x)/(1-16*x).
E.g.f.: (9 + 7*exp(16*x))/16. - Stefano Spezia, Sep 30 2022
MATHEMATICA
CoefficientList[Series[(1-9x)/(1-16x), {x, 0, 20}], x] (* Harvey P. Dale, Jun 02 2017 *)
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Wolfdieter Lang, Jan 25 2002
EXTENSIONS
More terms from Harvey P. Dale, Jun 02 2017
STATUS
approved