Numbers having three 0's in base 10.

Terms

a(0) =1000a(1) =2000a(2) =3000a(3) =4000a(4) =5000a(5) =6000a(6) =7000a(7) =8000a(8) =9000a(9) =10001a(10) =10002a(11) =10003a(12) =10004a(13) =10005a(14) =10006a(15) =10007a(16) =10008a(17) =10009a(18) =10010a(19) =10020a(20) =10030a(21) =10040a(22) =10050a(23) =10060a(24) =10070a(25) =10080a(26) =10090a(27) =10100a(28) =10200a(29) =10300