71901

Appears in sequences

• Number of n-node rooted unlabeled trees with out-degree <=2 and exactly 2 edges at the root.at n=18A036657
• Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 0), (-1, 1, -1), (0, 1, 1), (1, 0, 0), (1, 0, 1)}.at n=8A151082
• 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 566", based on the 5-celled von Neumann neighborhood.at n=16A283063