< 50 objects permutations

Out of context: Reply #20

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  • myobie0

    that diagram is two being connected at a time as far as i can see...

    that would a 50 choose 2 combination...or an 18 choose 2 combination...

    the calculations for those combinations are:
    50!/((50-2)!*2!)= 1225
    18!/((18-2)!*2!)= 153

    if you want to permutate it, just multiply each combination result by 3!...which is 7350 and 918

    A permutation lets different orders of the same calculations be the same...

    I think it's 3!

    It's a bad picture to represent a wrong number in the NTB either way...

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