Number of 4 X n 0..1 arrays with the number of 1's horizontally or antidiagonally adjacent to some 0 two less than the number of 0's adjacent to some 1.
A293090
Number of 4 X n 0..1 arrays with the number of 1's horizontally or antidiagonally adjacent to some 0 two less than the number of 0's adjacent to some 1.
Terms
- a(0) =0a(1) =10a(2) =498a(3) =8108a(4) =125848a(5) =1900201a(6) =28709764a(7) =435581165a(8) =6638075636a(9) =101571134541
External references
- oeis: A293090