# contraharmonic means and Pythagorean hypotenuses

## Primary tabs

Synonym:
contraharmonic integers, Pythagorean hypotenuses are contraharmonic means
Type of Math Object:
Theorem
Major Section:
Reference
Groups audience:

## Mathematics Subject Classification

### strange @@2@@

What means @@2@@? Sometimes, \PMlinkname{}{} produces such =o(

### Re: strange @@2@@

Maybe it will work if you use the canonical name PythagoreanTriple (instead of the non-canonical PrimitivePythagoreanTriplet).

### Re: strange @@2@@

Yark, I have already tried both names =o(

### Re: strange @@2@@

I don't know what the problem is, but I did some experiments and it seems that if you use $...$ rather than $$...$$ in the line above then it works OK!

### Re: strange @@2@@

Yes, it is true, Yark, now it's o.k.! Thank you very much for your experiments! You are super -- I would never had discovered it! BTW, I have neve before used $...$, only dollars =o)
Regards,
Jussi