Pisot sequence T(4,6), a(n) = floor(a(n-1)^2/a(n-2)).

Terms

a(0) =4a(1) =6a(2) =9a(3) =13a(4) =18a(5) =24a(6) =32a(7) =42a(8) =55a(9) =72a(10) =94a(11) =122a(12) =158a(13) =204a(14) =263a(15) =339a(16) =436a(17) =560a(18) =719a(19) =923a(20) =1184a(21) =1518a(22) =1946a(23) =2494a(24) =3196a(25) =4095a(26) =5246a(27) =6720a(28) =8608a(29) =11026