Powers of cube root of 3 rounded down.

Terms

a(0) =1a(1) =1a(2) =2a(3) =3a(4) =4a(5) =6a(6) =9a(7) =12a(8) =18a(9) =27a(10) =38a(11) =56a(12) =81a(13) =116a(14) =168a(15) =243a(16) =350a(17) =505a(18) =729a(19) =1051a(20) =1516a(21) =2187a(22) =3154a(23) =4549a(24) =6561a(25) =9462a(26) =13647a(27) =19683a(28) =28387a(29) =40942