Number of n X 4 0..1 arrays with the number of 1's horizontally, diagonally or antidiagonally adjacent to some 0 one less than the number of 0's adjacent to some 1.
A285746
Number of n X 4 0..1 arrays with the number of 1's horizontally, diagonally or antidiagonally adjacent to some 0 one less than the number of 0's adjacent to some 1.
Terms
- a(0) =2a(1) =44a(2) =630a(3) =8544a(4) =125088a(5) =1835412a(6) =27339964a(7) =410644956a(8) =6209001966a(9) =94379911740
External references
- oeis: A285746