Number of nX7 0..1 arrays avoiding 0 0 0 and 0 1 0 horizontally and 0 0 1 and 0 1 1 vertically.

A208117

Number of nX7 0..1 arrays avoiding 0 0 0 and 0 1 0 horizontally and 0 0 1 and 0 1 1 vertically.

Terms

    a(0) =40a(1) =1600a(2) =9240a(3) =53361a(4) =175560a(5) =577600a(6) =1432600a(7) =3553225a(8) =7419360a(9) =15492096a(10) =28791840a(11) =53509225a(12) =91408240a(13) =156150016a(14) =250232400a(15) =401000625a(16) =611163000a(17) =931470400a(18) =1363358920a(19) =1995498241a(20) =2824994040a(21) =3999297600a(22) =5505737640

External references