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A082572 a(n) is the least number m such that the arithmetic mean of the distinct primes dividing m equals n. 2
2, 3, 15, 5, 35, 7, 39, 65, 51, 11, 95, 13, 115, 161, 87, 17, 155, 19, 111, 185, 123, 23, 215, 141, 235, 329, 159, 29, 371, 31, 183, 305, 427, 201, 335, 37, 219, 365, 511, 41, 395, 43, 415, 581, 267, 47, 623, 1501, 291, 485, 303, 53, 515, 321, 327, 545, 339, 59 (list; graph; refs; listen; history; text; internal format)
OFFSET
2,1
COMMENTS
Are there any terms with more than 3 prime factors?
LINKS
EXAMPLE
a(6) = 35 because the prime factors of 35 are {5, 7}, which have mean 6.
CROSSREFS
Sequence in context: A262462 A180698 A266618 * A075244 A342567 A088030
KEYWORD
easy,nonn
AUTHOR
David Wasserman, May 06 2003
STATUS
approved

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Last modified July 16 08:10 EDT 2024. Contains 374345 sequences. (Running on oeis4.)