Question: Problem in defining a vector

Dear Users!

Hoped everything going fine with you. I constrcut the following code to construct the polynomials for any M1 and M2

printlevel := 2; M1 := 3; M2 := 3; nu := 1;
for k1 from 0 while k1 <= M1-1 do
for k2 from 0 while k2 <= M2-1 do
GP[k1+1, k2+1] := simplify(sum((-1)^(k1-i1)*GAMMA(k1+i1+2*nu)*GAMMA(nu+1/2)*x^i1*(sum((-1)^(k2-i2)*GAMMA(k2+i2+2*nu)*GAMMA(nu+1/2)*y^i2/(GAMMA(i2+nu+1/2)*factorial(k2-i2)*factorial(i2)*GAMMA(2*nu)), i2 = 0 .. k2))/(GAMMA(i1+nu+1/2)*factorial(k1-i1)*factorial(i1)*GAMMA(2*nu)), i1 = 0 .. k1))
end do end do;
I want to put this polynomials in a vector like
[GP[1,1]   GP[1,2]   GP[1,3]   GP[2,1]   GP[2,2]   GP[2,3]   GP[3,1]   GP[3,2]   GP[3,3]]
Similarlty I want to construct a vector having constants for any values of M1 and M2 like this
[a[1,1]   a[1,2]   a[1,3]   a[2,1]   a[2,2]   a[2,3]   a[3,1]   a[3,2]   a[3,3]]