T(n,k)=Number of nXk 0..1 arrays with every element equal to 0, 1 or 2 horizontally or antidiagonally adjacent elements, with upper left element zero.

A301841

T(n,k)=Number of nXk 0..1 arrays with every element equal to 0, 1 or 2 horizontally or antidiagonally adjacent elements, with upper left element zero.

Terms

    a(0) =1a(1) =2a(2) =2a(3) =4a(4) =8a(5) =4a(6) =8a(7) =25a(8) =32a(9) =8a(10) =16a(11) =81a(12) =139a(13) =128a(14) =16a(15) =32a(16) =263a(17) =678a(18) =773a(19) =512a(20) =32a(21) =64a(22) =855a(23) =3182a(24) =5748a(25) =4299a(26) =2048a(27) =64a(28) =128a(29) =2778

External references