A082572 a(n) is the least number m such that the arithmetic mean of the distinct primes dividing m equals n.

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

Offset: 2

Author

David Wasserman, May 06 2003

Keywords

• easy
• nonn

Comments

Are there any terms with more than 3 prime factors?

Examples

			a(6) = 35 because the prime factors of 35 are {5, 7}, which have mean 6.
		

Links

• Paolo P. Lava, Table of n, a(n) for n = 2..1000

Crossrefs

Cf. A070009, A078177, A200612.