Number of nX4 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.
A233022
Number of nX4 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) =27a(1) =435a(2) =8835a(3) =179999a(4) =3685017a(5) =75489671a(6) =1546718177a(7) =31692006853a(8) =649369155341
External references
- oeis: A233022