I would have thought it impossible, but in about 1968, at a local pool, there was a college diver I only recall as Archie. Off a 3 meter board, he would do a reverse flip, land back on the board, continue through a 1 1/2, land on one of the side 1 meter boards, go into another forward 1 1/2, and then enter the water.
At the Jones Beach west bathhouse, there were 5 boards. I’ve seen divers go off 2 different boards and cross in the air and some divers dive using multiple boards to complete a single dive comprised of multiple launches and landings. Never saw one called a Triple Lindy, but have to believe someone can do it.