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eti902
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Binomial coefficient in a binomial coefficient

I am doing some research in combinatorics, and I found that I have to consider the following binomial coefficient :

$$ \binom{\binom{i}{j}}{k} $$

In fact, I have to take the product for fixed $i,k$ and odd $j$’s, but to make this product, I have to manipulate those coefficients. Is there a way to write it in terms of other binomial coefficients, power series, or other tools?

eti902
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  • 5
  • 21