OFFSET
1,2
LINKS
Index entries for linear recurrences with constant coefficients, signature (6,0,0,1,-6).
FORMULA
G.f.: ( x*(1+2*x+3*x^2) ) / ( (x-1)*(6*x-1)*(1+x)*(x^2+1) ). - R. J. Mathar, Oct 13 2015
CROSSREFS
KEYWORD
nonn,base
AUTHOR
STATUS
approved