Number of 5Xn 0..2 arrays x(i,j) with each element horizontally or antidiagonally next to at least one element with value (x(i,j)+1) mod 3, and upper left element zero.
A230617
Number of 5Xn 0..2 arrays x(i,j) with each element horizontally 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) =0a(2) =0a(3) =3956a(4) =186396a(5) =9244260a(6) =434369516a(7) =20503681466a(8) =966773847580
External references
- oeis: A230617