Total number of Z shapes in all tilings of a 5 X n rectangle with pentominoes of any shape.
A247746
Total number of Z 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) =52a(5) =532a(6) =4772a(7) =44624a(8) =413332a(9) =3704668a(10) =32312456a(11) =277318708a(12) =2365831332a(13) =20023322874a(14) =168065885292
External references
- oeis: A247746