Number of n X 3 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.
A284194
Number of n X 3 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) =3a(1) =13a(2) =43a(3) =412a(4) =1919a(5) =18842a(6) =105367a(7) =983238a(8) =6123441a(9) =54284366a(10) =362590384a(11) =3094974718a(12) =21686456978a(13) =180282797672
External references
- oeis: A284194