108978

Appears in sequences

• a(n) = 2*A000111(n+1) + A000111(n).at n=9A231895
• 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 30", based on the 5-celled von Neumann neighborhood.at n=16A274476