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Math Help - Need help with Series

  1. #1
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    Need help with Series

    Hi.
    Evaluate.

    \Sigma^{\infty}_{n = 1}\frac{4^{2n}}{n! n^2}
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  2. #2
    MHF Contributor Drexel28's Avatar
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    What makes you think it has a cloesd form? I foresee some Ei(x)s
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  3. #3
    Super Member Anonymous1's Avatar
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    Try ratio.. Or one of those tests to see if your series converges.
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  4. #4
    Moo
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    See here : http://www.mathhelpforum.com/math-he...lp-series.html

    I sometimes feel so useful
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