A controversial last-minute penalty by Wes Hoolahan gave Blackpool a point.
Hoolahan went over following the dual intervention of Wes Morgan and Ian Breckin and referee Gary Sutton pointed to the spot amid Forest protests.
Hoolahan scored with his first effort but was forced to retake because of encroachment and he kept his cool to beat Forest keeper Paul Smith.
Forest took an early lead after a Jack Lester clearance found Junior Agogo who slipped the ball past Rhys Evans.
Nottm Forest: Smith, Curtis, Morgan, Breckin, Bennett, Prutton, Gary Holt, Perch, Lester (Commons 79), Agogo, Grant Holt (Dobie 60).
Subs Not Used: Pedersen, Chambers, Clingan.
Booked: Perch, Prutton, Bennett.
Goals: Agogo 16.
Blackpool: Evans, Barker, Jackson, Evatt, Gorkss, Gillett, Southern (Forbes 76), Fox, Hoolahan, Vernon (Burgess 76), Parker.
Subs Not Used: Rachubka, Joseph, Bean.
Goals: Hoolahan 90 pen.
Ref: G Sutton (Lincolnshire).