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2 votes
1 answer
118 views

Number of partitions of $n$ into distinct even parts.

Question from my last exam: Let $r_n$ denote the number of partitions of $n$ into distinct parts. Prove that $$ \sum_{i=0}^n(-1)^i r_i r_{n-i} $$ is the number of partitions of $n$ into distinct even ...
Michał's user avatar
  • 675
0 votes
1 answer
66 views

How can I prove this equation for my discrete math project?

Is there a way I can prove this? This is part of one of my discrete math classes. I need to prove: ${\displaystyle \prod_{i\geq1} \frac{1}{1-xq^i}} = {\displaystyle \sum_{k\geq0} \frac{x^kq^{k^2}}{(1-...
Miriam's user avatar
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