OFFSET
0,2
LINKS
Index entries for linear recurrences with constant coefficients, signature (1,1,1,2).
FORMULA
G.f. ( -1-2*x-3*x^2-4*x^3 ) / ( (2*x-1)*(1+x)*(x^2+1) ). - R. J. Mathar, Feb 06 2011
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Paul Curtz, May 23 2008
STATUS
approved