Number of n X n 0..1 arrays avoiding 0 0 0 and 1 0 1 horizontally and 0 0 1 and 0 1 1 vertically.
A208008
Number of n X n 0..1 arrays avoiding 0 0 0 and 1 0 1 horizontally and 0 0 1 and 0 1 1 vertically.
Terms
- a(0) =2a(1) =16a(2) =90a(3) =841a(4) =5952a(5) =43264a(6) =393049a(7) =4084441a(8) =32673396a(9) =334012176a(10) =3665311664a(11) =37536737536a(12) =385814058880
External references
- oeis: A208008