Number of tilings of a 5 X n rectangle using n pentominoes of any but the P shape.
A247770
Number of tilings of a 5 X n rectangle using n pentominoes of any but the P shape.
Terms
- a(0) =1a(1) =1a(2) =3a(3) =16a(4) =135a(5) =944a(6) =4814a(7) =26435a(8) =158761a(9) =978044a(10) =5847896a(11) =34112584a(12) =200686378a(13) =1192024482a(14) =7093151801a(15) =42038865123a(16) =248625856115
External references
- oeis: A247770