40622

Appears in sequences

• Number of imperfect staircase polygons counted by half-perimeter.at n=7A173413
• Number of (n+2)X(6+2) 0..1 arrays with every 3X3 subblock sum of the two medians of the central row and column plus the two sums of the diagonal and antidiagonal nondecreasing horizontally, vertically and ne-to-sw antidiagonally.at n=25A259004