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  1. MHB Master
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    #1
    Here is this week's POTW:

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    Let $ \displaystyle \prod_{n=1}^{1996} (1+nx^{3n})=1+a_1x^{k_1}+a_2x^{k_2}+\cdots+a_mx^{k_m}$ where $a_1,\,a_2,\,\cdots a_m$ are non-zero and $k_1<k_2<\cdots<k_m$.

    Find $a_{1996}$.

    -----

    Remember to read the "POTW submission guidelines to find out how to "submit your answers!

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