OFFSET
0,4
FORMULA
G.f.: -x*(-1-x+3*x^2) / ( (2*x+1)*(2*x-1)*(2*x^2-1) ). - R. J. Mathar, Nov 22 2018
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Paul Curtz, May 11 2008
EXTENSIONS
Edited by R. J. Mathar, Jul 16 2008
STATUS
approved