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A083863
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Consider recurrence b(0) = n/3, b(n) = b(n-1)*floor(b(n-1)); sequence gives first integer reached, or -1 if no integer is ever reached.
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3
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2, 336, 480480, 3, 10, 11, 4, 86632, 336, 5, 480480, 602088585139494925392355287938913017768414449509198770325691172429632961571366883360109083120, 6, 38, 40, 7, 2618, 8089284, 8, 4400, 4784, 9, 84, 87, 10, 164651957685772369755334525952840, 267038744632379007295584790187520, 11, 3260628657396881107663076132351728
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