524236

Appears in sequences

• a(0) = 4; for n>0, a(n) = a(n-1) + 2^n - 3.at n=18A249453
• Decimal representation of the x-axis, from the origin to the right edge, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 513", based on the 5-celled von Neumann neighborhood.at n=18A282807