1048519

Appears in sequences

• a(n) = 2^(n+1) - 3*n.at n=18A123203
• Decimal representation of the x-axis, from the left edge to the origin, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 315", based on the 5-celled von Neumann neighborhood.at n=19A281045