Remember that whiteboard President Barack Obama used to fill out his 2013 NCAA Tournament bracket? Well, now it could all yours ... if you've got some DEEP pockets.
TMZ Sports has learned ... the piece of equipment #44 famously wrote on to give his predictions for the tourney a decade ago is hitting Heritage Auctions -- and it's expected to ultimately sell for around $20,000.
Of course, it's a steep price for a bracket that got busted quickly, but ya gotta remember .