OFFSET
0,2
LINKS
Alois P. Heinz, Table of n, a(n) for n = 0..990
Index entries for linear recurrences with constant coefficients, signature (20,-100).
FORMULA
G.f.: -5*(9*x-2)*x/(10*x-1)^2.
a(n) = 10^(n-1)*(11*n+9)/2 for n>0, a(0) = 0.
MAPLE
a:= n-> `if`(n=0, 0, 10^(n-1)*(11*n+9)/2):
seq(a(n), n=0..30);
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Alois P. Heinz, Sep 18 2013
STATUS
approved