T(n,k)=Number of (n+2)X(k+2) 0..2 arrays with no 3x3 subblock diagonal sum equal to the antidiagonal sum or central row sum less than the central column sum.

A257385

T(n,k)=Number of (n+2)X(k+2) 0..2 arrays with no 3x3 subblock diagonal sum equal to the antidiagonal sum or central row sum less than the central column sum.

Terms

    a(0) =9300a(1) =119716a(2) =119716a(3) =1719620a(4) =1444804a(5) =1719620a(6) =24720784a(7) =20611600a(8) =20611600a(9) =24720784a(10) =349003536a(11) =343435024a(12) =190904784a(13) =343435024a(14) =349003536a(15) =4925793856a(16) =5413133476a(17) =2462144400a(18) =2462144400a(19) =5413133476a(20) =4925793856a(21) =69733153264

External references