7197425664domain: NAppears in sequencesExpansion of 1/(1-8*x)^8.at n=7A053107Triangle T, read by rows, where matrix power T^-2 has -2^(n+1) in the secondary diagonal: [T^-2](n+1,n) = -2^(n+1), with all 1's in the main diagonal and zeros elsewhere.at n=37A117265Expansion of x^3*(3*x - 2)/(2*x - 1)^3.at n=28A268586