Number of n X 4 0..1 arrays with the number of 1's horizontally, antidiagonally or vertically adjacent to some 0 one less than the number of 0's adjacent to some 1.
A285026
Number of n X 4 0..1 arrays with the number of 1's horizontally, antidiagonally or vertically adjacent to some 0 one less than the number of 0's adjacent to some 1.
Terms
- a(0) =2a(1) =26a(2) =442a(3) =6460a(4) =96458a(5) =1449814a(6) =22043878a(7) =336883696a(8) =5171750894a(9) =79634735346
External references
- oeis: A285026