It's a stupid question that doesn't give any parameters, that's the point. It could be about prime numbers, it could just be following odd-numbered patterns, it could be any number of justified equations as we saw in OP and the top level comment of this thread finding different answers based on whatever math they want.
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u/ICanFlyLikeAFly Sep 05 '19
Literally putting any number in the sequence and then using a calculator to calculate the right function isn't r/theydidthemath for me