Least positive integer whose square root starts with at least n odd decimal digits.

Terms

a(0) =1a(1) =1a(2) =3a(3) =3a(4) =63a(5) =91a(6) =91a(7) =249a(8) =249a(9) =384a(10) =391a(11) =391a(12) =2823a(13) =9996a(14) =9996a(15) =17260a(16) =17260a(17) =39984a(18) =39984a(19) =39984a(20) =308642a(21) =308642a(22) =308642a(23) =308642a(24) =308642a(25) =308642a(26) =308642a(27) =308642a(28) =308642a(29) =308642