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A174896
a(n) = numbers k in increasing order such that A007955(m) = k has no solution for any m, where A007955(m) = product of divisors of m.
2
4, 6, 9, 10, 12, 14, 15, 16, 18, 20, 21, 22, 24, 25, 26, 28, 30, 32, 33, 34, 35, 38, 39, 40, 42, 44, 45, 46, 48, 49, 50, 51, 52, 54, 55, 56, 57, 58, 60, 62, 63, 65, 66, 68, 69, 70, 72, 74, 75, 76, 77, 78, 80, 81, 82, 84, 85, 86, 87, 88, 90, 91, 92, 93, 94, 95
OFFSET
1,1
COMMENTS
Complement of A174895(n). A174897(a(n)) = 0, A174898(a(n)) = 1.
CROSSREFS
Sequence in context: A010447 A112082 A277494 * A304634 A375962 A319240
KEYWORD
nonn
AUTHOR
Jaroslav Krizek, Apr 01 2010
EXTENSIONS
More terms from Michel Marcus, Sep 18 2013
STATUS
approved