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Posts tagged combinatorics

4 posts

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Q&A What does the distribution of a strictly increasing random walk look like if you stop at `N` steps?

0 answers · posted 4d ago by SherlockSage‭ · edited 4d ago by SherlockSage‭

Question combinatorics

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Q&A $\sum_{k=0}^{n} \binom{n}{k}=2^{n} \overset{?}{\iff} \sum_{k=0}^{n} \binom{2n+1}{k}=2^{2n}$

1 answer · posted 4mo ago by DNB‭ · edited 3mo ago by DNB‭

Question combinatorics

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Q&A What's the bijection between Stars and Bars and Integer Solutions to an Equality?

0 answers · posted 4mo ago by DNB‭

Question combinatorics

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Q&A Are Stars and Bars in Combinatorics related to the Fence Post Error?

0 answers · posted 4mo ago by DNB‭

Question combinatorics