Numbers k such that k and k^2 use only the digits 0, 3, 4, 5 and 8.

Terms

a(0) =0a(1) =548a(2) =5480a(3) =54800a(4) =55548a(5) =548000a(6) =555388a(7) =555480a(8) =588048a(9) =5480000a(10) =5553880a(11) =5554548a(12) =5554800a(13) =5834388a(14) =5880480a(15) =54800000a(16) =55538800a(17) =55545480a(18) =55548000a(19) =58343880a(20) =58804800a(21) =548000000a(22) =550500548a(23) =555388000a(24) =555454800a(25) =555480000a(26) =583438800a(27) =588048000a(28) =5480000000a(29) =5505005480