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.

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.

Links

Table of n, a(n) for n=1..66.

Crossrefs

Sequence in context: A010447 A112082 A277494 * A304634 A319240 A331051

Adjacent sequences: A174893 A174894 A174895 * A174897 A174898 A174899

Keyword

nonn

Author

Jaroslav Krizek, Apr 01 2010

Extensions

More terms from Michel Marcus, Sep 18 2013

Status

approved