Duplicate of A069710.

Terms

a(0) =11a(1) =1021a(2) =1201a(3) =2011a(4) =3001a(5) =10103a(6) =10211a(7) =10301a(8) =11003a(9) =12011a(10) =12101a(11) =13001a(12) =20021a(13) =20201a(14) =21011a(15) =21101