Pisot sequences E(4,9), P(4,9).

Terms

a(0) =4a(1) =9a(2) =20a(3) =44a(4) =97a(5) =214a(6) =472a(7) =1041a(8) =2296a(9) =5064a(10) =11169a(11) =24634a(12) =54332a(13) =119833a(14) =264300a(15) =582932a(16) =1285697a(17) =2835694a(18) =6254320a(19) =13794337a(20) =30424368a(21) =67103056a(22) =148000449a(23) =326425266a(24) =719953588a(25) =1587907625a(26) =3502240516a(27) =7724434620a(28) =17036776865a(29) =37575794246