T(n,k)=Number of nXk 0..1 arrays avoiding 0 0 0 and 0 1 0 horizontally and 0 0 1 and 1 0 0 vertically.
A207741
T(n,k)=Number of nXk 0..1 arrays avoiding 0 0 0 and 0 1 0 horizontally and 0 0 1 and 1 0 0 vertically.
Terms
- a(0) =2a(1) =4a(2) =4a(3) =6a(4) =16a(5) =6a(6) =9a(7) =36a(8) =36a(9) =9a(10) =15a(11) =81a(12) =114a(13) =81a(14) =14a(15) =25a(16) =225a(17) =361a(18) =387a(19) =196a(20) =22a(21) =40a(22) =625a(23) =1425a(24) =1849a(25) =1414a(26) =484a(27) =35a(28) =64a(29) =1600
External references
- oeis: A207741