T(n,k)=Number of (n+2)X(k+2) 0..3 arrays with each 3X3 subblock having the sum of its 72 absolute element differences equal to 52, and no adjacent elements equal.

A234867

T(n,k)=Number of (n+2)X(k+2) 0..3 arrays with each 3X3 subblock having the sum of its 72 absolute element differences equal to 52, and no adjacent elements equal.

Terms

    a(0) =2216a(1) =11714a(2) =11714a(3) =61954a(4) =56100a(5) =61954a(6) =326786a(7) =272878a(8) =272878a(9) =326786a(10) =1791552a(11) =1375612a(12) =1241772a(13) =1375612a(14) =1791552a(15) =9897540a(16) =7418922a(17) =6113796a(18) =6113796a(19) =7418922a(20) =9897540a(21) =54119058a(22) =41004436a(23) =33431812a(24) =29472954a(25) =33431812a(26) =41004436a(27) =54119058

External references