263892

Appears in sequences

• Number of 6-step one space at a time bishop's tours on an n X n board summed over all starting positions.at n=33A187159
• Number of (n+1) X (1+1) 0..1 arrays with the difference of the upper median and minimum value of each 2 X 2 subblock in lexicographically nondecreasing order rowwise and columnwise.at n=9A235653