268402680

Appears in sequences

• Number of active (ON, black) cells at stage 2^n-1 of the two-dimensional cellular automaton defined by "Rule 275", based on the 5-celled von Neumann neighborhood.at n=13A271092
• Number of active (ON, black) cells at stage 2^n-1 of the two-dimensional cellular automaton defined by "Rule 641", based on the 5-celled von Neumann neighborhood.at n=13A273310
• Number of aperiodic binary arrays of size n.at n=26A323864