Number of n X n 0..3 arrays with every row and column running average nondecreasing rightwards and downwards.

A201209

Number of n X n 0..3 arrays with every row and column running average nondecreasing rightwards and downwards.

Terms

    a(0) =4a(1) =50a(2) =1684a(3) =146946a(4) =33635880a(5) =21062625664

External references