Total number of T shapes in all tilings of a 5 X n rectangle with pentominoes of any shape.
A247740
Total number of T shapes in all tilings of a 5 X n rectangle with pentominoes of any shape.
Terms
- a(0) =0a(1) =0a(2) =0a(3) =6a(4) =66a(5) =772a(6) =6760a(7) =60122a(8) =552930a(9) =4887052a(10) =42365416a(11) =361418592a(12) =3063883318a(13) =25819450218a(14) =215875963118
External references
- oeis: A247740