Number of 6Xn 0..1 arrays avoiding 0 0 0 and 0 1 1 horizontally and 0 0 1 and 1 1 0 vertically.

A207115

Number of 6Xn 0..1 arrays avoiding 0 0 0 and 0 1 1 horizontally and 0 0 1 and 1 1 0 vertically.

Terms

    a(0) =12a(1) =144a(2) =556a(3) =2239a(4) =7837a(5) =22714a(6) =68737a(7) =187054a(8) =505040a(9) =1346150a(10) =3472283a(11) =9030485a(12) =23093108a(13) =58964061a(14) =150498240a(15) =381786944a(16) =970985642a(17) =2462695787a(18) =6245279141a(19) =15844141700a(20) =40148846797a(21) =101805976056a(22) =258034064806a(23) =653990198430

External references