199021domain: NPropertiesPrimalityPrimeyesAppears in sequencesA sum of Jacobi transforms of 10^n.at n=5A110253Number of active (ON, black) cells at stage 2^n-1 of the two-dimensional cellular automaton defined by "Rule 865", based on the 5-celled von Neumann neighborhood.at n=8A273700Prime numbersat n=17908