Number of n X 3 0..3 arrays with no element x(i,j) adjacent to value 3-x(i,j) horizontally, antidiagonally or vertically, top left element zero, and 1 appearing before 2 in row major order.
A233068
Number of n X 3 0..3 arrays with no element x(i,j) adjacent to value 3-x(i,j) horizontally, antidiagonally or vertically, top left element zero, and 1 appearing before 2 in row major order.
Terms
- a(0) =5a(1) =50a(2) =582a(3) =6854a(4) =80811a(5) =952869a(6) =11235652a(7) =132484030a(8) =1562171807a(9) =18420188169a(10) =217199754056
External references
- oeis: A233068