Number of nX4 0..1 arrays avoiding 0 0 0 and 0 0 1 horizontally and 0 0 1 and 0 1 0 vertically.
A208365
Number of nX4 0..1 arrays avoiding 0 0 0 and 0 0 1 horizontally and 0 0 1 and 0 1 0 vertically.
Terms
- a(0) =10a(1) =100a(2) =450a(3) =1953a(4) =9338a(5) =41433a(6) =177909a(7) =774134a(8) =3350020a(9) =14367500a(10) =61642245a(11) =264469320a(12) =1132543047a(13) =4847303685a(14) =20747148598a(15) =88770363000a(16) =379728672366
External references
- oeis: A208365