67239936

Appears in sequences

• a(n) = (8^n + 4^n)/2.at n=9A081337
• Expansion of (1-x-4x^2)/((1-2x)(1-8x^2)).at n=18A098657
• a(n) = n^6*(n^3 + 1)/2.at n=8A168555
• Decimal representation of the diagonal from the origin to the corner of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 838", based on the 5-celled von Neumann neighborhood.at n=26A290547