Pisot sequences L(6,15), S(6,15).

Terms

a(0) =6a(1) =15a(2) =38a(3) =97a(4) =248a(5) =635a(6) =1626a(7) =4164a(8) =10664a(9) =27311a(10) =69945a(11) =179134a(12) =458775a(13) =1174956a(14) =3009148a(15) =7706648a(16) =19737289a(17) =50548641a(18) =129458768a(19) =331553377a(20) =849132458a(21) =2174690356a(22) =5569541124a(23) =14264002343a(24) =36531153701a(25) =93558957622a(26) =239611336203a(27) =613662164440