Numbers whose square has more than 2/3 of its digits the same.

Terms

a(0) =0a(1) =1a(2) =2a(3) =3a(4) =38a(5) =100a(6) =200a(7) =212a(8) =300a(9) =1000a(10) =2000a(11) =2538a(12) =3000a(13) =4000a(14) =5000a(15) =6000a(16) =6888a(17) =7000a(18) =8000a(19) =9000a(20) =10000a(21) =20000a(22) =30000a(23) =32000a(24) =33000a(25) =40000a(26) =44800a(27) =45000a(28) =47000a(29) =48000