A174894 Numbers such that both arithmetic means of distinct and all prime factors are integers.

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]

Links

Table of n, a(n) for n=1..54.

Example

For a(11) = 16: 16 = 2^4; both (2+2+2+2)/4 and 2/1 are integers.

Crossrefs

Sequence in context: A213715 A360552 A078174 * A275616 A088948 A369096

Adjacent sequences: A174891 A174892 A174893 * A174895 A174896 A174897

Keyword

nonn

Author

Jaroslav Krizek, Apr 01 2010

Status

approved