61500072

Appears in sequences

• Number of active (ON, black) cells at stage 2^n-1 of the two-dimensional cellular automaton defined by "Rule 337", based on the 5-celled von Neumann neighborhood.at n=12A271286
• Number of active (ON, black) cells at stage 2^n-1 of the two-dimensional cellular automaton defined by "Rule 507", based on the 5-celled von Neumann neighborhood.at n=12A272586