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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

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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 * A389809 A164019 A307701