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Jan 15, 2017 at 21:19 comment added user3760541 There is a tight lower bound for the triple product: $$LCS(\pi_1,\pi_2)LCS(\pi_2,\pi_3)LCS(\pi_3,\pi_1)\ge n$$
Jan 25, 2015 at 16:21 history asked user3760541 CC BY-SA 3.0