244983

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, 1), (0, 1, 0), (1, -1, -1), (1, -1, 1)}.at n=12A148249
• Number of binary strings of length n where the number of runs equals the number of 1s.at n=21A391450