T(n,k)=Number of (n+1)X(k+1) 0..4 arrays with every 2X2 subblock having the sum of the absolute values of the edge differences equal to 8 and no adjacent elements equal.

A233928

T(n,k)=Number of (n+1)X(k+1) 0..4 arrays with every 2X2 subblock having the sum of the absolute values of the edge differences equal to 8 and no adjacent elements equal.

Terms

    a(0) =98a(1) =518a(2) =518a(3) =2792a(4) =4010a(5) =2792a(6) =15230a(7) =32496a(8) =32496a(9) =15230a(10) =83290a(11) =273318a(12) =405004a(13) =273318a(14) =83290a(15) =456328a(16) =2325194a(17) =5389600a(18) =5389600a(19) =2325194a(20) =456328a(21) =2500838a(22) =19931860a(23) =73564176a(24) =117016814a(25) =73564176a(26) =19931860a(27) =2500838a(28) =13709358

External references