Starting term of the smallest n-chain of numbers whose squares are permutations of the same digits.

Terms

a(0) =12a(1) =13a(2) =102a(3) =128a(4) =103a(5) =1023a(6) =1003a(7) =3206a(8) =3514a(9) =3774a(10) =10013a(11) =10012a(12) =10172a(13) =10126a(14) =10209a(15) =10117a(16) =10215a(17) =11093a(18) =10023a(19) =31968a(20) =10128a(21) =31822a(22) =31647a(23) =32157a(24) =31723a(25) =32946a(26) =32238a(27) =32625a(28) =11826a(29) =32013