60384

Appears in sequences

• Number of right triangles on a (n+1)X9 grid.at n=20A189813
• Number of active (ON, black) cells at stage 2^n-1 of the two-dimensional cellular automaton defined by "Rule 339", based on the 5-celled von Neumann neighborhood.at n=7A271290
• 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 569", based on the 5-celled von Neumann neighborhood.at n=15A283068
• G.f. satisfies A(x) = 1 + x/A(x)^3*(1 + 1/A(x)^2).at n=5A364399