T(n,k)=Number of nXk binary arrays with top left value 1 and no two ones adjacent horizontally or vertically.
A228390
T(n,k)=Number of nXk binary arrays with top left value 1 and no two ones adjacent horizontally or vertically.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =2a(4) =2a(5) =2a(6) =3a(7) =5a(8) =5a(9) =3a(10) =5a(11) =12a(12) =21a(13) =12a(14) =5a(15) =8a(16) =29a(17) =72a(18) =72a(19) =29a(20) =8a(21) =13a(22) =70a(23) =268a(24) =382a(25) =268a(26) =70a(27) =13a(28) =21a(29) =169
External references
- oeis: A228390