OFFSET
0,3
FORMULA
O.g.f.: -(1-11*x+13*x^2)/(-1+x)^2/(-1+10*x) = -1/27/(-1+10*x)-(1/3)/(-1+x)^2-35/27/(-1+x). a(n+1) = 10*a(n)+3*(n-3). - R. J. Mathar, Nov 30 2007
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Paul Curtz, Nov 28 2007
EXTENSIONS
More terms from R. J. Mathar, Nov 30 2007
STATUS
approved