Number of n X 3 0..3 arrays with no element x(i,j) adjacent to value 3-x(i,j) horizontally, diagonally or antidiagonally, and top left element zero.
A232950
Number of n X 3 0..3 arrays with no element x(i,j) adjacent to value 3-x(i,j) horizontally, diagonally or antidiagonally, and top left element zero.
Terms
- a(0) =9a(1) =129a(2) =1881a(3) =27441a(4) =400329a(5) =5840289a(6) =85202361a(7) =1242993681a(8) =18133691049a(9) =264547403649
External references
- oeis: A232950