Pisot sequence L(3,10).

Terms

a(0) =3a(1) =10a(2) =34a(3) =116a(4) =396a(5) =1352a(6) =4616a(7) =15760a(8) =53808a(9) =183712a(10) =627232a(11) =2141504a(12) =7311552a(13) =24963200a(14) =85229696a(15) =290992384a(16) =993510144a(17) =3392055808a(18) =11581202944a(19) =39540700160a(20) =135000394752a(21) =460920178688