Number of nX7 0..3 arrays with no element x(i,j) adjacent to value 3-x(i,j) horizontally, vertically or antidiagonally, and top left element zero.
A232947
Number of nX7 0..3 arrays with no element x(i,j) adjacent to value 3-x(i,j) horizontally, vertically or antidiagonally, and top left element zero.
Terms
- a(0) =729a(1) =114243a(2) =22471303a(3) =4586348177a(4) =950054488141
External references
- oeis: A232947