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for questions about sequences and series, e.g. convergence, closed form expressions, etc. Note that there is a different tag for spectral sequences, and also note that MathOverflow is not for homework. Please consider consulting the online encyclopedia for integer sequences, if you are trying to identify a given sequence that you have found in your research.

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What is the pattern in this sequence of fractions? [closed]

1/2, 1/2, 5/8, 5/7, 17/22, 13/16,... I notice the top numbers are all primes but could not find how that helps. At first I thought maybe it is similar to a Fibonnaci type sequence because of the first …
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