-2095

Appears in sequences

• Numerators of e.g.f.: tan(arccosh(x)) = cot(arcsinh(x)).at n=3A102061
• First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 169", based on the 5-celled von Neumann neighborhood.at n=35A270464