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A036460 Erroneous version of A009287 (the 2 should be omitted). 0
2, 3, 4, 6, 12, 60, 5040, 293318625600 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,1
COMMENTS
Let b(n) = min k: d^k(n) = 2, where d(n) is the number of divisors of n. Then the given values correctly identify records of b(n). But see A251483 for a slight variant with more values.
LINKS
CROSSREFS
Sequence in context: A018521 A018561 A018602 * A018616 A018655 A018683
KEYWORD
dead
STATUS
approved

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Last modified May 21 17:21 EDT 2024. Contains 372738 sequences. (Running on oeis4.)