OFFSET
0,2
COMMENTS
Numerator of g.f. is row polynomial Sum_{m=0..4} A061186(3,m)*x^m.
LINKS
Michael De Vlieger, Table of n, a(n) for n = 0..2374
Geoffrey B. Campbell, Vector Partition Identities for 2D, 3D and nD Lattices, arXiv:2302.01091 [math.CO], 2023.
FORMULA
a(n) = A060923(n+2, 2).
G.f.: (1+x)*(1+29*x-35*x^2+12*x^3)/(1-3*x+x^2)^3.
MATHEMATICA
CoefficientList[Series[(1 + x) (1 + 29 x - 35 x^2 + 12 x^3)/(1 - 3 x + x^2)^3, {x, 0, 20}], x] (* Michael De Vlieger, Feb 06 2023 *)
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Wolfdieter Lang, Apr 20 2001
STATUS
approved