65601536domain: NAppears in sequencesExpansion of x^4*(1 - x)^2*(1 - 3*x^2 - 2*x^3 + x^4 - x^5)/(1 - 2*x)^3.at n=26A192886a(n) = binomial(n+9, 9)*8^n.at n=5A196280a(1) = 2, a(2) = 48; for n >= 1, a(n+2) = c(n)*a(n+1)^2/a(n) where c(n) = 256*(2*n+3)^2*(4*n+1)*(4*n+3)^2*(4*n+5) / (27*(3*n+1)*(3*n+2)^2*(3*n+4)^2*(3*n+5)).at n=3A352207