Number of nX5 0..1 arrays with exactly n+5-2 having value 1 and no three 1s forming an isosceles right triangle.

A272955

Number of nX5 0..1 arrays with exactly n+5-2 having value 1 and no three 1s forming an isosceles right triangle.

Terms

    a(0) =5a(1) =34a(2) =107a(3) =210a(4) =768a(5) =1898a(6) =8211a(7) =37402a(8) =192579a(9) =635086a(10) =2366644a(11) =9742518a(12) =38088673a(13) =149636652a(14) =590014096a(15) =2364716800a(16) =9270827068a(17) =36956377972a(18) =147747894211a(19) =585280946044

External references