1279611

Appears in sequences

• Number of n X 2 arrays of the minimum value of corresponding elements and their horizontal or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and columns, 0..3 n X 2 array.at n=17A219465
• a(n) is the number of 5 element sets of distinct integer sided strict rectangles that fill an n X n square.at n=40A387605