Huntington Green seats. I believe they begin selling them at the boxes office there 1-2 hours before games. I think they're $10. Almost every game I've been to, I've sat in the Green seats and I think they're decent. Be there when they open, because the line fills quickly and usually sells out.
Edit:
"**Two (2) hours before every Blue Jackets home game, 250 tickets are released in the 200 Level. These $10 Huntington Green Seats may only be purchased in person at the Nationwide Arena Box Office and are subject to availability."
http://bluejackets.nhl.com/team/app?service=page&page=NHLPage&bcid=are_seat_single