A126611 Sum x+y of generator pairs (x, y) {x and y coprime and not both odd} of primitive Pythagorean triangles, sorted.

3, 5, 5, 7, 7, 7, 9, 9, 9, 11, 11, 11, 11, 11, 13, 13, 13, 13, 13, 13, 15, 15, 15, 15, 17, 17, 17, 17, 17, 17, 17, 17, 19, 19, 19, 19, 19, 19, 19, 19, 19, 21, 21, 21, 21, 21, 21, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 27, 27, 27, 27

Offset: 1

Author

Lekraj Beedassy, Feb 07 2007

Keywords

• nonn

Comments

Also, the square root of the sum of even leg and hypotenuse of primitive Pythagorean triangles, sorted.

Crossrefs

Cf. A094192, A094193.

Formula

2n-1 appears A072451(n) times.