OFFSET
1,2
LINKS
Index entries for linear recurrences with constant coefficients, signature (4,0,1,-4).
FORMULA
G.f.: x*(1+3*x^2) / ( (x-1)*(4*x-1)*(1+x+x^2) ). - R. J. Mathar, Apr 27 2015
MATHEMATICA
Table[FromDigits[PadRight[{}, n, {1, 0, 3}], 4], {n, 30}] (* Harvey P. Dale, Apr 28 2018 *)
CROSSREFS
KEYWORD
nonn,base,easy
AUTHOR
STATUS
approved