1048639

Appears in sequences

• a(n) = smallest number that leads to a new cycle under the base-4 Kaprekar map of A165012.at n=24A165029
• Decimal representation of the diagonal from the corner to the origin of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 606", based on the 5-celled von Neumann neighborhood.at n=43A289891