Wasn't Seinfeld the one who thought Seven was the perfect name for a kid? Maybe I'm getting the joke wrong; I think I've seen that show maybe twice. However, everyone I know is constantly quoting it at me, so I know there's something about naming a kid Seven. Incidentally, there is a little boy named Seven in Ithaca (his brother's name is Tenor).
Anyway, here is a list of Numerical Names from Wikipedia.
