55976

Appears in sequences

• Number of regular octahedra that can be formed using the points in an (n+1)X(n+1)X(n+1) lattice cube.at n=18A178797
• 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 185", based on the 5-celled von Neumann neighborhood.at n=15A279701
• a(n) = a(n-2) + 2*a(n-4) - a(n-10), with a[0..9] = [1, 1, 1, 1, 1, 2, 3, 5, 6, 9].at n=35A366143