Powers of fourth root of 6 rounded up.

Terms

a(0) =1a(1) =2a(2) =3a(3) =4a(4) =6a(5) =10a(6) =15a(7) =24a(8) =36a(9) =57a(10) =89a(11) =139a(12) =216a(13) =339a(14) =530a(15) =829a(16) =1296a(17) =2029a(18) =3175a(19) =4969a(20) =7776a(21) =12171a(22) =19048a(23) =29811a(24) =46656a(25) =73021a(26) =114284a(27) =178864a(28) =279936a(29) =438124