Number of nX2 0..3 arrays with every row and column running average nondecreasing rightwards and downwards but some diagonal running average having a decrease.

A202162

Number of nX2 0..3 arrays with every row and column running average nondecreasing rightwards and downwards but some diagonal running average having a decrease.

Terms

    a(0) =0a(1) =0a(2) =4a(3) =44a(4) =288a(5) =1537a(6) =7328a(7) =32515a(8) =137127a(9) =557042a(10) =2199406a(11) =8493667a(12) =32225692a(13) =120526196a(14) =445477330a(15) =1630344366a(16) =5917000834a(17) =21321552087a(18) =76358216811a(19) =271995346780a(20) =964328895552

External references