(sorry for the double post. Had to fix the lower bound)
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Thanks. Twitter will use this to make your timeline better. UndoUndo
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Of course, in general one has the following. And B_{k} are called Bell numbers (B₀ = 1, B₁ = 1, B₂ = 2, B₃ = 5, B₄ = 15, B₅ = 52, etc). Bell numbers count the number of ways to partition k elements.pic.twitter.com/a7m64WHesx
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mv screenshot.png ~/dillonberger/twitter/tweet_later
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How did you stumble upon this, just randomly?
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Just doing my daily peruse through stack exchange
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