Numbers with all digits odd whose squares have only one odd digit.

Terms

a(0) =1a(1) =3a(2) =5a(3) =7a(4) =9a(5) =15a(6) =17a(7) =51a(8) =53a(9) =79a(10) =91a(11) =93a(12) =151a(13) =155a(14) =157a(15) =533a(16) =535a(17) =775a(18) =779a(19) =793a(20) =917a(21) =1557a(22) =1571a(23) =1575a(24) =5179a(25) =5333a(26) =5335a(27) =7759a(28) =7799a(29) =9317