17910863

Appears in sequences

• Number of n X 4 0..2 arrays of the median of the corresponding element, the element to the east and the element to the south in a larger (n+1) X 5 0..2 array without adjacent equal elements in the latter.at n=6A229517
• Number of n X 7 0..2 arrays of the median of the corresponding element, the element to the east and the element to the south in a larger (n+1) X 8 0..2 array without adjacent equal elements in the latter.at n=3A229520