T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with every 2X2 and 3X3 subblock diagonal sum minus antidiagonal sum unequal to its neighbors horizontally and vertically.

A253740

T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with every 2X2 and 3X3 subblock diagonal sum minus antidiagonal sum unequal to its neighbors horizontally and vertically.

Terms

    a(0) =218a(1) =720a(2) =720a(3) =2212a(4) =1888a(5) =2212a(6) =6932a(7) =4100a(8) =4100a(9) =6932a(10) =22236a(11) =9876a(12) =7216a(13) =9876a(14) =22236a(15) =70372a(16) =25012a(17) =17608a(18) =17608a(19) =25012a(20) =70372a(21) =222820a(22) =60296a(23) =44332a(24) =54688a(25) =44332a(26) =60296a(27) =222820a(28) =706884a(29) =148328

External references