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

1,1

Comments

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

Links

Table of n, a(n) for n=1..72.

Formula

2n-1 appears A072451(n) times.

Crossrefs

Cf. A094192, A094193.

Sequence in context: A111800 A190136 A360635 * A164019 A307701 A103332

Adjacent sequences: A126608 A126609 A126610 * A126612 A126613 A126614

Keyword

nonn

Author

Lekraj Beedassy, Feb 07 2007

Status

approved