T(n,k)=Number of nXk 0..1 arrays with every element equal to 0, 1 or 3 horizontally or antidiagonally adjacent elements, with upper left element zero.

A301884

T(n,k)=Number of nXk 0..1 arrays with every element equal to 0, 1 or 3 horizontally or antidiagonally adjacent elements, with upper left element zero.

Terms

    a(0) =1a(1) =2a(2) =2a(3) =3a(4) =5a(5) =4a(6) =5a(7) =10a(8) =13a(9) =8a(10) =8a(11) =18a(12) =29a(13) =34a(14) =16a(15) =13a(16) =35a(17) =58a(18) =95a(19) =89a(20) =32a(21) =21a(22) =74a(23) =125a(24) =203a(25) =289a(26) =233a(27) =64a(28) =34a(29) =154

External references