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A174894
Numbers such that both arithmetic means of distinct and all prime factors are integers.
3
2, 3, 4, 5, 7, 8, 9, 11, 13, 15, 16, 17, 19, 21, 23, 25, 27, 29, 31, 32, 33, 35, 37, 39, 41, 42, 43, 47, 49, 51, 53, 55, 57, 59, 61, 64, 65, 67, 69, 71, 73, 77, 78, 79, 81, 83, 85, 87, 89, 91, 93, 95, 97, 101
OFFSET
1,1
COMMENTS
Subsequence of A078174 and A078175.
Complement of A176552. [From Jaroslav Krizek, Apr 21 2010]
EXAMPLE
For a(11) = 16: 16 = 2^4; both (2+2+2+2)/4 and 2/1 are integers.
CROSSREFS
Sequence in context: A360552 A373852 A078174 * A275616 A088948 A369096
KEYWORD
nonn
AUTHOR
Jaroslav Krizek, Apr 01 2010
STATUS
approved