93403domain: NAppears in sequencesExpansion of x*(-1+4*x)/((x-1)*(2*x-1)*(4*x^2+4*x-1)).at n=9A110052a(n) = 441*n^2 - 394*n + 88.at n=14A157734Repeated application of the Syracuse map over F_2[x] starting from 1+x^3, m = 1+x^2. Represented as the integers resulting from evaluating the polynomial at 2 over Z.at n=21A368120