OFFSET
1,1
COMMENTS
For ordered hypotenuses of primitive Pythagorean triangles see A020882.
The hypotenuse Z of the primitive Pythagorean triple (X, Y, Z) with X<Y<Z is obtained from the generator pairs (x, y), x>y (x and y coprime and not both odd) using the relation Z = x^2 + y^2. The even leg is 2*x*y and the odd leg is x^2 - y^2. [From Lekraj Beedassy, May 06 2010]
LINKS
Ray Chandler, Table of n, a(n) for n = 1..10000
F. Richman, Pythagorean Triples
CROSSREFS
KEYWORD
nonn
AUTHOR
Lekraj Beedassy, May 25 2004
EXTENSIONS
Inserted a sqrt(.) operation in the definition - R. J. Mathar, Apr 12 2010
Deleted incorrect sqrt in definition (based on author's initial comment) - Aaron Kastel, Oct 30 2012
STATUS
approved