techofweb on "How to set permalinks as incremental integer values"

Hi...
What I want is that the permalinks of my posts should be
http://www.domain.com/71
domain.com/72
domain.com/73

Whenever I add a new post, it should show the url of post with +1 added integer and I should have the option to set any different numeric value for any post

Is there any hack, plugin or any solution for the same

Thanks a lot