157179domain: NAppears in sequencesDecimal representation of the x-axis, from the origin to the right edge, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 438", based on the 5-celled von Neumann neighborhood.at n=19A282221Expansion of Product_{i>=2, j>=2} 1 / (1 - x^(i*j))^j.at n=43A326830