Numbers k such that k^2 contains only digits {4,5,9}.

A053954

Numbers k such that k^2 contains only digits {4,5,9}.

Terms

    a(0) =2a(1) =3a(2) =7a(3) =212a(4) =2357a(5) =23357a(6) =244038a(7) =678196107

External references