Square numbers can be found at Bowman's (until they switch you to the sharp lines, based on your wagering preference), Sports Interaction and BoDog (until they switch you as well).
Sharp numbers can be found at Grande, WWTS (with their new linesmaker), SkyBook/RIO, Jazz/ABC Islands, Cascade, CRIS, Hollywood, Pinnacle, Tradewinds, and BetAtlantic.
Hope this helps.
CE