Number of tilings of a 5 X n rectangle using n pentominoes of any but the Z shape.
A247777
Number of tilings of a 5 X n rectangle using n pentominoes of any but the Z shape.
Terms
- a(0) =1a(1) =1a(2) =5a(3) =52a(4) =451a(5) =3498a(6) =23502a(7) =173611a(8) =1323447a(9) =9920654a(10) =73573634a(11) =545170514a(12) =4060213800a(13) =30266880736a(14) =225316532881
External references
- oeis: A247777