176899domain: NPropertiesPrimalityPrimeyesAppears in sequencesPrimes of the form 10n^2 + 9.at n=23A201711Decimal 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 398", based on the 5-celled von Neumann neighborhood.at n=20A281759Prime numbersat n=16077