Number of tilings of a 3 X n rectangle using dominoes and trominoes (of any shape).
A364460
Number of tilings of a 3 X n rectangle using dominoes and trominoes (of any shape).
Terms
- a(0) =1a(1) =1a(2) =6a(3) =30a(4) =145a(5) =733a(6) =3540a(7) =17300a(8) =84479a(9) =411963a(10) =2011408a(11) =9816506a(12) =47911847a(13) =233851991a(14) =1141365064a(15) =5570761346a(16) =27189615925a(17) =132706261547a(18) =647709321582
External references
- oeis: A364460