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A178169
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Numbers in A178168, sorted.
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3
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1, 2, 8, 64, 1024, 5120, 32768, 51200, 153600, 921600, 1024000, 2097152, 11059200, 40960000, 44040192, 265420800, 268435456, 532480000, 1849688064, 3276800000, 12740198400, 13844480000, 68719476736, 155373797376, 524288000000
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listen;
history;
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internal format)
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OFFSET
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1,2
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COMMENTS
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At least the first 12332052 terms of this sequence are unique. It is conjectured that all terms are unique. The sequence is easy to compute by generating the Collatz tree on the fly while keeping track of products.
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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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