T(n,k)=Number of nXk 0..4 arrays with each element x equal to the number of its horizontal and vertical neighbors equal to 3,0,2,1,4 for x=0,1,2,3,4.

A196485

T(n,k)=Number of nXk 0..4 arrays with each element x equal to the number of its horizontal and vertical neighbors equal to 3,0,2,1,4 for x=0,1,2,3,4.

Terms

    a(0) =1a(1) =3a(2) =3a(3) =4a(4) =6a(5) =4a(6) =5a(7) =14a(8) =14a(9) =5a(10) =8a(11) =36a(12) =40a(13) =36a(14) =8a(15) =12a(16) =83a(17) =147a(18) =147a(19) =83a(20) =12a(21) =17a(22) =192a(23) =457a(24) =826a(25) =457a(26) =192a(27) =17a(28) =25a(29) =468

External references