Squares composed of digits {1,6,8}.

A053909

Squares composed of digits {1,6,8}.

Terms

    a(0) =1a(1) =16a(2) =81a(3) =1681a(4) =11881a(5) =1666681a(6) =818188816a(7) =6168688681a(8) =6661661161a(9) =611686666816

External references