  Thus \(H(2,2) = 2^{4} = 16, H(3,3) = 2^{256}\) is more than \(10^{77}\) and comparable to the number of atoms in the universe. If that’s not big enough for you then consider \(H(4,4)\). To write this number in decimal notation we would need a one, followed by more zero’s than the number of particles in the universe.