Number of nX6 0..2 arrays x(i,j) with each element horizontally, diagonally or antidiagonally next to at least one element with value 2-x(i,j).
A230673
Number of nX6 0..2 arrays x(i,j) with each element horizontally, diagonally or antidiagonally next to at least one element with value 2-x(i,j).
Terms
- a(0) =33a(1) =21933a(2) =6081561a(3) =1844154933a(4) =559929294657
External references
- oeis: A230673