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 3,0,2,4,1 for x=0,1,2,3,4.

A196456

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 3,0,2,4,1 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) =30a(12) =40a(13) =30a(14) =8a(15) =12a(16) =67a(17) =131a(18) =131a(19) =67a(20) =12a(21) =17a(22) =146a(23) =383a(24) =594a(25) =383a(26) =146a(27) =17a(28) =25a(29) =320

External references