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.

4500, 61200, 4393701

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