287154

Appears in sequences

• Number of walks within N^2 (the first quadrant of Z^2) starting at (0,0), ending on the vertical axis and consisting of n steps taken from {(-1, -1), (-1, 0), (-1, 1), (0, -1), (0, 1), (1, 0)}.at n=10A151464
• Number of arrays of the median of three adjacent elements of some length n+2 0..5 array.at n=7A228737