T(n,k)=Number of nXk 0..3 arrays with no element equal to the sum mod 4 of its horizontal and vertical neighbors.

A183508

T(n,k)=Number of nXk 0..3 arrays with no element equal to the sum mod 4 of its horizontal and vertical neighbors.

Terms

    a(0) =3a(1) =12a(2) =12a(3) =27a(4) =81a(5) =27a(6) =81a(7) =776a(8) =776a(9) =81a(10) =252a(11) =6561a(12) =19683a(13) =6561a(14) =252a(15) =729a(16) =59292a(17) =531441a(18) =531441a(19) =59292a(20) =729a(21) =2187a(22) =531441a(23) =14369472a(24) =43146816a(25) =14369472a(26) =531441a(27) =2187a(28) =6588a(29) =4786704

External references