505683

Appears in sequences

• Number of (n+1) X (2+1) 0..1 arrays with every 2 X 2 subblock diagonal minimum minus antidiagonal minimum nondecreasing horizontally and diagonal maximum minus antidiagonal maximum nondecreasing vertically.at n=11A253225
• Number of length n word structures with all distinct run-lengths using an infinite alphabet.at n=27A351638