Number of tilings of a 4 X n rectangle using dominoes and 2 X 2 tiles.
A352432
Number of tilings of a 4 X n rectangle using dominoes and 2 X 2 tiles.
Terms
- a(0) =1a(1) =1a(2) =11a(3) =29a(4) =165a(5) =593a(6) =2773a(7) =11093a(8) =48605a(9) =201829a(10) =864901a(11) =3638261a(12) =15472261a(13) =65377669a(14) =277294885a(15) =1173523013a(16) =4972873413a(17) =21056700293a(18) =89200845765a(19) =377774394309
External references
- oeis: A352432