64716

Appears in sequences

• 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, -1), (-1, 0, 0), (0, 0, 1), (1, 0, 0), (1, 1, 0)}.at n=8A151091
• Triangle read by rows: T(n,k) is the number of unlabeled connected multigraphs with n edges on k nodes, no cut-points and degree >= 3 at each node, loops allowed, n >= 2, 1 <= k <= floor(2*n/3).at n=62A360870
• a(n) is the number of n-celled fixed polyominoes with at least 180 degree rotational symmetry about the center of a square in the lattice.at n=18A390653