A114585 Minimal numbers m such that number of positive integers whose harmonic mean with m is n.

1, 2, 3, 8, 9, 10, 6, 128, 21, 12, 18, 136, 24, 250, 54, 36, 45, 230, 70, 30, 200, 72, 135, 32896, 384, 441, 144, 324, 105, 60, 490, 150, 90, 972, 1215, 3087, 576, 408, 168, 120, 3645, 1152, 3430, 750, 270, 378, 735, 300, 180, 35937, 9261, 1728, 882, 450, 8990

Offset

1,2

Comments

Also minimal numbers m such that the number of factors of 2 m^2 which are less than 2 m, is n. First missed entry is for n=60, m>100000. Cf. A055081 Number of positive integers whose harmonic mean with n is a positive integer.

Links

Table of n, a(n) for n=1..55.

Crossrefs

Greedy inverse of A055081.

Sequence in context: A100805 A068800 A291838 * A161641 A053754 A353652

Adjacent sequences: A114582 A114583 A114584 * A114586 A114587 A114588

Keyword

nonn

Author

Zak Seidov, Dec 10 2005

Status

approved