OFFSET
1,1
LINKS
Index entries for linear recurrences with constant coefficients, signature (10,-10,10,-9).
FORMULA
G.f.: ( x*(2-2*x+3*x^2) ) / ( (x-1)*(9*x-1)*(x^2+1) ). - R. J. Mathar, Oct 14 2015
MATHEMATICA
Table[FromDigits[PadRight[{}, n, {2, 0, 1, 3}], 9], {n, 20}] (* Harvey P. Dale, Jan 29 2023 *)
CROSSREFS
KEYWORD
nonn,base
AUTHOR
STATUS
approved