OFFSET
0,2
LINKS
Alois P. Heinz, Table of n, a(n) for n = 0..10000
J. A. De Loera, D. Haws, R. Hemmecke, P. Huggins, B. Sturmfels and R. Yoshida, Short Rational Functions for Toric Algebra and Applications J. Symbolic Computation 38 (2) 2004, 959.
FORMULA
G.f.:= r(t)/s(t), where
r = t^54+150*t^51+5837*t^48+63127*t^45+331124*t^42+1056374*t^39+2326380*t^36+3842273
s = (t^3+1)^4*(t^12+t^9+t^6+t^3+1)*(1-t^3)^9*(t^6+t^3+1).
CROSSREFS
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Oct 12 2005
EXTENSIONS
This paper also gives a g.f. for the number of 5 X 5 magic squares with magic sum n (A111158). - N. J. A. Sloane.
STATUS
approved