Pisot sequences E(3,7), P(3,7).

Terms

a(0) =3a(1) =7a(2) =16a(3) =37a(4) =86a(5) =200a(6) =465a(7) =1081a(8) =2513a(9) =5842a(10) =13581a(11) =31572a(12) =73396a(13) =170625a(14) =396655a(15) =922111a(16) =2143648a(17) =4983377a(18) =11584946a(19) =26931732a(20) =62608681a(21) =145547525a(22) =338356945a(23) =786584466a(24) =1828587033a(25) =4250949112a(26) =9882257736a(27) =22973462017a(28) =53406819691a(29) =124155792775