var games = []

do {var ticket = Math.floor(Math.random() * (+20 - +1) + +1)
    var seats = Math.floor(Math.random() * (+15 - +5) + +5)

    var pot = seats * ticket 
    var round = Math.floor(pot/5)*5
    var take = pot - round

    var game=[seats, ticket, pot, round, take]

    if (true) {
        if (games.indexOf(game) === -1) {games.push(game)}
    }
}
while ( games.length < 1 )

console.log(games.sort())