Number of n X 4 0..1 arrays with the number of 1's horizontally, diagonally or antidiagonally adjacent to some 0 equal to the number of 0's adjacent to some 1, with top left element zero.
A284330
Number of n X 4 0..1 arrays with the number of 1's horizontally, diagonally or antidiagonally adjacent to some 0 equal to the number of 0's adjacent to some 1, with top left element zero.
Terms
- a(0) =6a(1) =34a(2) =373a(3) =5130a(4) =70039a(5) =1000935a(6) =14581112a(7) =215806808a(8) =3229703988a(9) =48741017873a(10) =740325265021
External references
- oeis: A284330