Number of n X 3 0..1 arrays with the number of 1's horizontally or vertically adjacent to some 0 two less than the number of 0's adjacent to some 1.
A286974
Number of n X 3 0..1 arrays with the number of 1's horizontally or vertically adjacent to some 0 two less than the number of 0's adjacent to some 1.
Terms
- a(0) =0a(1) =5a(2) =50a(3) =538a(4) =3932a(5) =32253a(6) =238532a(7) =1875212a(8) =14222474a(9) =110768815a(10) =851356180a(11) =6619388000a(12) =51243150110a(13) =398853561051
External references
- oeis: A286974