218371

Properties

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, 0), (-1, 1, 1), (0, 0, -1), (1, 0, -1), (1, 0, 1)}.at n=10A149297
• Number of ways to place zero or more nonadjacent 0,0 1,0 2,1 3,1 polyhexes in any orientation on a planar nXnXn triangular grid.at n=7A155226
• Prime numbersat n=19469