Number of nX5 0..2 arrays x(i,j) with each element horizontally, vertically or antidiagonally next to at least one element with value (x(i,j)+1) mod 3, and upper left element zero.
A230334
Number of nX5 0..2 arrays x(i,j) with each element horizontally, vertically or antidiagonally next to at least one element with value (x(i,j)+1) mod 3, and upper left element zero.
Terms
- a(0) =0a(1) =1386a(2) =157200a(3) =20948996a(4) =2788320240a(5) =370609462746
External references
- oeis: A230334