227745

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, 0, 0), (0, 1, 1), (1, -1, 1), (1, 1, -1)}.at n=10A149051
• A bisection of A063522.at n=22A160674
• Triangle T(n,k) of number of chains of length k in partitions of an n-set ordered by refinement.at n=34A331955