Number of n X 3 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.
A233021
Number of n X 3 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) =9a(1) =81a(2) =849a(3) =8835a(4) =92067a(5) =959385a(6) =9997413a(7) =104179551a(8) =1085618895a(9) =11312857317a(10) =117887355777
External references
- oeis: A233021