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 equal to the central column sum.

A258564

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 equal to the central column sum.

Terms

    a(0) =11532a(1) =179776a(2) =179776a(3) =2826448a(4) =4884100a(5) =2826448a(6) =44622400a(7) =134652816a(8) =134652816a(9) =44622400a(10) =702129040a(11) =3749847696a(12) =6542200832a(13) =3749847696a(14) =702129040a(15) =11033401600a(16) =103717490704a(17) =321924603456a(18) =321924603456a(19) =103717490704

External references