-6559

Appears in sequences

• a(n) = 2-(-3)^n.at n=8A081630
• a(n) = (2 - 3^n)*(-1)^n.at n=8A168589
• First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 65", based on the 5-celled von Neumann neighborhood.at n=41A270086
• First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 323", based on the 5-celled von Neumann neighborhood.at n=41A271256