Greater of number pair whose squares are reversals of each other, with no leading zeros allowed.

Terms

a(0) =21a(1) =31a(2) =99a(3) =201a(4) =301a(5) =211a(6) =311a(7) =221a(8) =2001a(9) =3001a(10) =1101a(11) =2101a(12) =3101a(13) =1201a(14) =2201a(15) =1301a(16) =2011a(17) =3011a(18) =2111a(19) =3111a(20) =1211a(21) =2211a(22) =2021a(23) =2121a(24) =2102a(25) =2202a(26) =6501a(27) =20001a(28) =30001a(29) =11001