OFFSET
0,2
LINKS
Alois P. Heinz, Table of n, a(n) for n = 0..2000 (terms n=4..500 from R. H. Hardin)
Index entries for linear recurrences with constant coefficients, signature (0,0,2,3,2,1).
FORMULA
G.f.: -(x+1)^2*(x^2+1)^3/(x^6+2*x^5+3*x^4+2*x^3-1). - R. J. Mathar, Jan 19 2011
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
R. H. Hardin, Aug 14 2009
EXTENSIONS
a(0)-a(3) from Alois P. Heinz, Jun 11 2021
STATUS
approved