-688128domain: ZAppears in sequencesTriangular array of the coefficients of the sequence of Abel polynomials A(n,x) := x*(x-n)^(n-1).at n=39A137452a(n)=(5-(-1)^n-6*n)*2^(n-2).at n=15A179609Chebyshev coefficients of density of states of 4D hypercubic lattice.at n=5A288459