Find the ordinary generating function for the number of partitions of n in which all parts are odd and none surpasses 7. My answer is:
$$\prod\limits_{i=1}^7 \frac{1}{1-x^{2i}}$$
She is correct?
Find the ordinary generating function for the number of partitions of n in which all parts are odd and none surpasses 7. My answer is:
$$\prod\limits_{i=1}^7 \frac{1}{1-x^{2i}}$$
She is correct?
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Hint: See this here. The generation function is $\large{\prod\limits_{i=1}^{\infty} \frac{1}{1-x^{2i-1}}}=\normalsize{\prod\limits_{i=1}^{\infty}}(1-x^i)$. For $n=7$ we get
$$\prod\limits_{i=1}^{7}(1-x^i)$$