Number of tilings of a 5 X n rectangle using n pentominoes of any but the F shape.
A247766
Number of tilings of a 5 X n rectangle using n pentominoes of any but the F shape.
Terms
- a(0) =1a(1) =1a(2) =5a(3) =52a(4) =437a(5) =3342a(6) =21734a(7) =155685a(8) =1153475a(9) =8422634a(10) =60853524a(11) =438333924a(12) =3175356262a(13) =23029289042a(14) =166811590187
External references
- oeis: A247766