Number of nX7 0..3 arrays with no element x(i,j) adjacent to value 3-x(i,j) horizontally, vertically, diagonally or antidiagonally, and top left element zero.
A233025
Number of nX7 0..3 arrays with no element x(i,j) adjacent to value 3-x(i,j) horizontally, vertically, diagonally or antidiagonally, and top left element zero.
Terms
- a(0) =729a(1) =67449a(2) =9997413a(3) =1546718177a(4) =245698677999
External references
- oeis: A233025