Lucky Lucky is a side bet based on the player's first two cards and the dealer's up card. As far as I know, it is the first side bet to be based on the player's first two cards and the dealer's up card. Since it came out, there have been many imitators.
Through the years I have seen four pay tables, which I refer to on this page as numbers 1 to 4. Pay table 1 was the original one and seen at casinos all over the United States and Canada. Pay table 2 was a double-deck version, omitting the pay for a suited 7-7-7, which is impossible in a double-deck game. Pay table 3 came along around 2014 as an apparent effort to increase what was a low house advantage for a side bet. Pay table 4 can be found at Internet casinos using Felt Gaming software.
Source http://wizardofodds.com/games/blackjack/side-bets/lucky-lucky/