T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with every 2X2 subblock having one, two or three distinct clockwise edge differences.
A210390
T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with every 2X2 subblock having one, two or three distinct clockwise edge differences.
Terms
- a(0) =73a(1) =597a(2) =597a(3) =4881a(4) =13399a(5) =4881a(6) =39909a(7) =300653a(8) =300653a(9) =39909a(10) =326313a(11) =6747079a(12) =18515113a(13) =6747079a(14) =326313a(15) =2668077a(16) =151416037a(17) =1140445889a(18) =1140445889a(19) =151416037a(20) =2668077a(21) =21815361a(22) =3398046223a(23) =70247824293a(24) =192819707871
External references
- oeis: A210390