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

Terms

a(0) =101a(1) =101a(2) =101a(3) =101a(4) =101a(5) =351a(6) =1244a(7) =194a(8) =4648a(9) =951a(10) =4357a(11) =3757a(12) =2169a(13) =2392a(14) =7399a(15) =7501a(16) =9723a(17) =8683a(18) =13867a(19) =6152a(20) =15204a(21) =18898a(22) =40141a(23) =54631a(24) =29647a(25) =35586a(26) =46564a(27) =67743a(28) =84789a(29) =119421