1827498

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), (0, 1, -1), (0, 1, 0), (1, 0, -1), (1, 0, 1)}.at n=11A150217
• Number of 10-step S, NW and NE-moving king's tours on an n X n board summed over all starting positions.at n=18A187384