Number of aperiodic tilings of an n X 1 rectangle by tiles of dimension 1 X 1 and 2 X 1.

Terms

a(0) =1a(1) =1a(2) =2a(3) =3a(4) =7a(5) =9a(6) =20a(7) =29a(8) =52a(9) =80a(10) =143a(11) =217a(12) =376a(13) =588a(14) =977a(15) =1563a(16) =2583a(17) =4116a(18) =6764a(19) =10854a(20) =17688a(21) =28512a(22) =46367a(23) =74763a(24) =121385a(25) =196040a(26) =317756a(27) =513616a(28) =832039a(29) =1345192