Numbers k such that the decimal expansion of 5^k contains no zeros.

A008839

Numbers k such that the decimal expansion of 5^k contains no zeros.

Terms

    a(0) =0a(1) =1a(2) =2a(3) =3a(4) =4a(5) =5a(6) =6a(7) =7a(8) =9a(9) =10a(10) =11a(11) =17a(12) =18a(13) =30a(14) =33a(15) =58

External references