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Math Help - Number Sequences hard

  1. #1
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    Mar 2009
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    Number Sequences hard

    Hello All,

    Well to make the Story short, I made a little bet in school that I could solve all the number sequences on a site, but now's the joke. I cant

    Ye ye , stop laughing But really I can handle myself at numbers normally pretty well, but this seems out of my league

    Can anyone solve this ? (and no not The On-Line Encyclopedia of Integer Sequences :P)

    -2 3 27 69 129 …


    For those interested, this is the site, and was making the hard test ofc.

    Number Sequences | Fibonicci.com
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  2. #2
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    Mar 2009
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    if people from a math forum cant solve it , i may have a legit excuse hehe
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