CHALLENGE: Find a sequence that is both geometric and arithmetic.

Discussion in 'Physics & Math' started by soadfreak2005, Apr 8, 2009.

  1. soadfreak2005

    soadfreak2005 Registered Member

    Messages:
    5
    There I came up with only one. Can you find one?
     
    soadfreak2005, Apr 8, 2009
    #1

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  3. Tom2

    Tom2 Registered Senior Member

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    726
    \(a_n=0\) for all \(n\in\mathbb{N}\).

    :-D
     
    Tom2, Apr 8, 2009
    #2

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  5. mathman

    mathman Valued Senior Member

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    2,002
    Any constant sequence will do.
     
    mathman, Apr 8, 2009
    #3

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  7. temur

    temur man of no words Registered Senior Member

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    1,330
    these are the only ones.
     
    temur, Apr 8, 2009
    #4
  8. rpenner

    rpenner Fully Wired Valued Senior Member

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    4,833
    I didn't find that challenging.
     
    rpenner, Apr 9, 2009
    #5
  9. Absane

    Absane Rocket Surgeon Valued Senior Member

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    8,989
    This challenge sucks hardcore.
     
    Absane, Apr 9, 2009
    #6
  10. Tom2

    Tom2 Registered Senior Member

    Messages:
    726
    Just so we're all clear on this: I answered first, so I won.

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    Tom2, Apr 11, 2009
    #7

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