A144949 Consider numbers x,y,z such that UnitarySigma(x) = UnitarySigma(y) = UnitarySigma(z) = 4*(x*y*z)^(1/2)/( x^(1/2) + y^(1/2) + z^(1/2)), x<=y<=z . Sequence gives x .

3, 45, 1512, 51408, 66528, 85500, 185976, 6323184, 8182944, 11442816, 43023600, 318041100, 1407466368, 5881607424, 22350712320, 723437713152, 183348802920960

Offset

1,1

Comments

a(6) : x=y, y<z

a(11) : x=y, y<z

a(12) : x<y, y=z

Links

Table of n, a(n) for n=1..17.

Crossrefs

Sequence in context: A352409 A187662 A113065 * A144950 A144951 A079484

Adjacent sequences: A144946 A144947 A144948 * A144950 A144951 A144952

Keyword

nonn

Author

Yasutoshi Kohmoto, Feb 21 2009

Status

approved