T(n,k)=Number of (n+2)X(k+2) 0..3 arrays with every 3X3 subblock having equal diagonal elements or equal antidiagonal elements, and new values 0..3 introduced in row major order.

A204056

T(n,k)=Number of (n+2)X(k+2) 0..3 arrays with every 3X3 subblock having equal diagonal elements or equal antidiagonal elements, and new values 0..3 introduced in row major order.

Terms

    a(0) =1379a(1) =10447a(2) =10447a(3) =80391a(4) =112362a(5) =80391a(6) =622031a(7) =756338a(8) =756338a(9) =622031a(10) =4823759a(11) =5883499a(12) =5257444a(13) =5883499a(14) =4823759a(15) =37451727a(16) =45689226a(17) =39646479a(18) =39646479a(19) =45689226a(20) =37451727a(21) =290942303a(22) =361569647a(23) =315429190a(24) =316144367a(25) =315429190

External references