Least number k not divisible by 10 such that k^3 contains n zeros.

Terms

a(0) =16a(1) =52a(2) =101a(3) =252a(4) =1002a(5) =1001a(6) =10003a(7) =10002a(8) =10001a(9) =100003a(10) =100002a(11) =100001a(12) =1000003a(13) =1000002a(14) =1000001a(15) =10000003a(16) =10000002a(17) =10000001a(18) =100000003a(19) =100000002a(20) =100000001a(21) =1000000003a(22) =1000000002a(23) =1000000001a(24) =10000000003a(25) =10000000002a(26) =10000000001a(27) =100000000003a(28) =100000000002