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A055492
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Numbers n such that LCM{1, ..., n} is a minimal number.
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1
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1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 16, 27, 28
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OFFSET
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1,2
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COMMENTS
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Minimal numbers (A007416): let A(h) = least positive integer having exactly h divisors, let d(n) = number of divisors of n; then n is minimal if A(d(n)) = n; i.e. if n is the least positive integer having the number of divisors it has.
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REFERENCES
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J. Roberts, Lure of the Integers, Math. Assoc. of America, 1992, page 86.
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LINKS
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CROSSREFS
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KEYWORD
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nonn,fini,full
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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