Number of nX7 0..3 arrays with no element x(i,j) adjacent to value 3-x(i,j) horizontally, antidiagonally or vertically, top left element zero, and 1 appearing before 2 in row major order.
A233072
Number of nX7 0..3 arrays with no element x(i,j) adjacent to value 3-x(i,j) horizontally, antidiagonally or vertically, top left element zero, and 1 appearing before 2 in row major order.
Terms
- a(0) =365a(1) =57122a(2) =11235652a(3) =2293174089a(4) =475027244071
External references
- oeis: A233072