Powers of fifth root of 18 rounded down.

Terms

a(0) =1a(1) =1a(2) =3a(3) =5a(4) =10a(5) =18a(6) =32a(7) =57a(8) =101a(9) =181a(10) =324a(11) =577a(12) =1029a(13) =1835a(14) =3271a(15) =5832a(16) =10396a(17) =18532a(18) =33035a(19) =58889a(20) =104976a(21) =187130a(22) =333579a(23) =594639a(24) =1060005a(25) =1889568a(26) =3368348a(27) =6004426a(28) =10703505a(29) =19080094