Number of nX6 0..3 arrays x(i,j) with each element horizontally or vertically next to at least one element with value (x(i,j)+1) mod 4, and upper left element zero.
A230249
Number of nX6 0..3 arrays x(i,j) with each element horizontally or vertically next to at least one element with value (x(i,j)+1) mod 4, and upper left element zero.
Terms
- a(0) =0a(1) =522a(2) =64838a(3) =15075834a(4) =2905031942a(5) =575915716590
External references
- oeis: A230249