Round(1000*x), where x is the solution to x = 5^(n-x).

Terms

a(0) =470a(1) =1000a(2) =1678a(3) =2445a(4) =3265a(5) =4120a(6) =5000a(7) =5897a(8) =6808a(9) =7729a(10) =8659a(11) =9595a(12) =10537a(13) =11483a(14) =12434a(15) =13388a(16) =14345a(17) =15305a(18) =16267a(19) =17231a(20) =18197a(21) =19165a(22) =20134a(23) =21105a(24) =22077a(25) =23050a(26) =24025a(27) =25000a(28) =25976a(29) =26953