Number of 3 X n binary arrays with top left value 1 and no two ones adjacent horizontally, diagonally or antidiagonally.

A228662

Number of 3 X n binary arrays with top left value 1 and no two ones adjacent horizontally, diagonally or antidiagonally.

Terms

    a(0) =4a(1) =5a(2) =34a(3) =78a(4) =335a(5) =968a(6) =3556a(7) =11245a(8) =38986a(9) =127662a(10) =433015a(11) =1437072a(12) =4833924a(13) =16125205a(14) =54068594a(15) =180718798a(16) =605223135a(17) =2024416088a(18) =6776576996a(19) =22673534845a(20) =75884451226a(21) =253927226542a(22) =849793486215

External references