Number of ways to color cells of an n X n square with 2 colors so that no subsquare of side > 1 has all corners same color.
A018803
Number of ways to color cells of an n X n square with 2 colors so that no subsquare of side > 1 has all corners same color.
Terms
- a(0) =1a(1) =2a(2) =14a(3) =276a(4) =10980a(5) =781712a(6) =58339148a(7) =3066831440a(8) =58170992144a(9) =313031791856a(10) =109957124552a(11) =5020721992a(12) =3980056a(13) =1140264a(14) =232228
External references
- oeis: A018803