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A045474
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Normalized extreme values for "3x+1" trees of depth n.
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3
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4, 8, 14, 24, 42, 76, 138, 254, 470, 876, 1638, 3070, 5766, 10850, 20436, 38550, 72806, 137670, 260612, 493824, 936690, 1778360, 3379372, 6427190, 12232928, 23300652, 44414366, 84713872, 161686324, 308780220
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OFFSET
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1,1
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REFERENCES
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D. Applegate and J. C. Lagarias, Distribution of 3x+1 trees, Experimental Mathematics 4 (1995),193-209.
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LINKS
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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