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A144490 Consider pairs m,n such that 1/(UnitarySigma(m))^(1/2)=1/(UnitarySigma(n))^(1/2)=k^(1/2)*(1/m^(1/2)-1/n^(1/2)), n<m. Sequence gives values of n. 2
4500, 61200, 4393701 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..3.

EXAMPLE

Factorizations: 5^3*2^2*3^2 5^2*17*2^4*3^2 13*17*3^2*47^2

CROSSREFS

A144491, A144492

Sequence in context: A031745 A225625 A184465 * A252470 A252628 A252623

Adjacent sequences:  A144487 A144488 A144489 * A144491 A144492 A144493

KEYWORD

nonn,bref

AUTHOR

Yasutoshi Kohmoto, Dec 11 2008

STATUS

approved

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Last modified November 18 13:22 EST 2018. Contains 317306 sequences. (Running on oeis4.)