Number of n X n 0..2 white square subarrays x(i,j) with each element diagonally or antidiagonally next to at least one element with value 2-x(i,j).
A230646
Number of n X n 0..2 white square subarrays x(i,j) with each element diagonally or antidiagonally next to at least one element with value 2-x(i,j).
Terms
- a(0) =0a(1) =3a(2) =3a(3) =123a(4) =1635a(5) =337977a(6) =31908483a(7) =40860127671
External references
- oeis: A230646