Number of nX7 0..1 arrays avoiding 0 0 0 and 0 1 0 horizontally and 0 0 1 and 0 1 0 vertically.
A207425
Number of nX7 0..1 arrays avoiding 0 0 0 and 0 1 0 horizontally and 0 0 1 and 0 1 0 vertically.
Terms
- a(0) =40a(1) =1600a(2) =20550a(3) =241087a(4) =3210938a(5) =39698733a(6) =474552171a(7) =5755114104a(8) =69609375870a(9) =836438494500
External references
- oeis: A207425