261589

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, 0, 1), (0, 1, 0), (1, 0, 0), (1, 1, -1)}.at n=9A151062
• Number of circular arrangements of the first n positive integers such that adjacent terms have absolute difference 1 or 4.at n=44A336749