T(n,k)=Number of (n+2)X(k+2) 0..2 arrays with every 3X3 subblock having three equal elements in a row horizontally, vertically, diagonally or antidiagonally exactly one way, and new values 0..2 introduced in row major order.

A204745

T(n,k)=Number of (n+2)X(k+2) 0..2 arrays with every 3X3 subblock having three equal elements in a row horizontally, vertically, diagonally or antidiagonally exactly one way, and new values 0..2 introduced in row major order.

Terms

    a(0) =1412a(1) =17835a(2) =17835a(3) =225474a(4) =352950a(5) =225474a(6) =2824381a(7) =7146451a(8) =7146451a(9) =2824381a(10) =35428257a(11) =141179471a(12) =236324802a(13) =141179471a(14) =35428257a(15) =445314552a(16) =2839352529a(17) =7481378218a(18) =7481378218a(19) =2839352529a(20) =445314552a(21) =5591644019a(22) =57762265633

External references