Number of 3 X n (0,1)-matrices with no consecutive 1's in any row or column.

A051736

Number of 3 X n (0,1)-matrices with no consecutive 1's in any row or column.

Terms

    a(0) =1a(1) =5a(2) =17a(3) =63a(4) =227a(5) =827a(6) =2999a(7) =10897a(8) =39561a(9) =143677a(10) =521721a(11) =1894607a(12) =6879979a(13) =24983923a(14) =90725999a(15) =329460929a(16) =1196397873a(17) =4344577397a(18) =15776816033a(19) =57291635519a(20) =208047769363a(21) =755500774443

External references