Number of n X 4 0..1 arrays with the number of 1's horizontally, antidiagonally or vertically adjacent to some 0 equal to the number of 0's adjacent to some 1, with top left element zero.
A284195
Number of n X 4 0..1 arrays with the number of 1's horizontally, antidiagonally or vertically 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) =40a(2) =412a(3) =5268a(4) =71181a(5) =1001047a(6) =14392557a(7) =210449237a(8) =3113715736a(9) =46513546197a(10) =700181791562
External references
- oeis: A284195