OFFSET
0,2
LINKS
Index entries for linear recurrences with constant coefficients, signature (111,-1110,1000).
FORMULA
G.f.: 3*x*(101 - 200*x)/((1 - x)(1 - 10*x)(1 - 100*x)).
a(n) = 111*a(n-1) - 1110*a(n-2) + 1000*a(n-3) for n > 2.
E.g.f.: exp(x)*(10*exp(99*x) - 9*exp(9*x) - 1)/3. - Stefano Spezia, Jul 13 2024
MAPLE
A332130 := n -> (10^(2*n+1)-1)/3-3*10^n;
MATHEMATICA
Array[ (10^(2 # + 1)-1)/3 - 3*10^#) &, 15, 0]
PROG
CROSSREFS
KEYWORD
nonn,base,easy
AUTHOR
M. F. Hasler, Feb 09 2020
STATUS
approved