13 is obvious but there is no ban on #1:
http://www.hockey-reference.com/teams/NJD/numbers.html
I actually like what the Ducks do. They give rookies funky numbers (Bobby Ryan: 54, Corey Perry: 61, Ryan Getzlaf: 51, Kyle Palmieri: 51) and make them show that that they belong and have to earn more traditional numbers (Ryan: 9, Perry: 10, Getzlaf: 15, Palmieri: 21).