Numbers k such that k and k^2 use only the digits 0, 2, 3, 8 and 9.

Terms

a(0) =0a(1) =3a(2) =30a(3) =283a(4) =300a(5) =2830a(6) =2983a(7) =3000a(8) =28300a(9) =29830a(10) =29983a(11) =30000a(12) =30333a(13) =283000a(14) =283203a(15) =283233a(16) =298300a(17) =298803a(18) =299830a(19) =299983a(20) =300000a(21) =303330a(22) =2830000a(23) =2832030a(24) =2832330a(25) =2983000a(26) =2988030a(27) =2998300a(28) =2999830a(29) =2999983