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Excel 2007 : Random seating chart no repeats

  1. #1
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    Random seating chart no repeats

    Have networking event I'm running. 20 people, 5 tables. We spend 5 minutes at each table, then move to another table. Is there a formula I can use that ensures no two people will be at the same table more than once.

  2. #2
    Forum Guru shg's Avatar
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    Re: Random seating chart no repeats

    Welcome to the forum.

    From a tabulation of solutions by Warwick Harvey:

    [[1, 2, 3, 4], [5, 6, 7, 8], [9, 10, 11, 12], [13, 14, 15, 16], [17, 18, 19, 20]]

    [[1, 5, 9, 13], [2, 10, 15, 17], [3, 8, 14, 20], [4, 7, 12, 19], [6, 11, 16, 18]]

    [[1, 7, 11, 15], [2, 9, 16, 20], [3, 6, 13, 19], [4, 8, 10, 18], [5, 12, 14, 17]]

    [[1, 8, 12, 16], [2, 11, 14, 19], [3, 5, 15, 18], [4, 6, 9, 17], [7, 10, 13, 20]]

    [[1, 6, 10, 14], [2, 12, 13, 18], [3, 7, 16, 17], [4, 5, 11, 20], [8, 9, 15, 19]]
    Entia non sunt multiplicanda sine necessitate

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