Powers of fifth root of 10 rounded down.

Terms

a(0) =1a(1) =1a(2) =2a(3) =3a(4) =6a(5) =10a(6) =15a(7) =25a(8) =39a(9) =63a(10) =100a(11) =158a(12) =251a(13) =398a(14) =630a(15) =1000a(16) =1584a(17) =2511a(18) =3981a(19) =6309a(20) =10000a(21) =15848a(22) =25118a(23) =39810a(24) =63095a(25) =100000a(26) =158489a(27) =251188a(28) =398107a(29) =630957