Total number of F shapes in all tilings of a 5 X n rectangle with pentominoes of any shape.
A247735
Total number of F shapes in all tilings of a 5 X n rectangle with pentominoes of any shape.
Terms
- a(0) =0a(1) =0a(2) =0a(3) =4a(4) =68a(5) =744a(6) =7088a(7) =69176a(8) =658776a(9) =5995348a(10) =52831448a(11) =458439732a(12) =3944077760a(13) =33606901296a(14) =283630894720
External references
- oeis: A247735