Powers of fifth root of 10 rounded up.

Terms

a(0) =1a(1) =2a(2) =3a(3) =4a(4) =7a(5) =10a(6) =16a(7) =26a(8) =40a(9) =64a(10) =100a(11) =159a(12) =252a(13) =399a(14) =631a(15) =1000a(16) =1585a(17) =2512a(18) =3982a(19) =6310a(20) =10000a(21) =15849a(22) =25119a(23) =39811a(24) =63096a(25) =100000a(26) =158490a(27) =251189a(28) =398108a(29) =630958