1,1

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

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

2n-1 appears A072451(n) times.

Cf. A094192, A094193.

Sequence in context: A175767 A111800 A190136 * A164019 A103332 A195796

Adjacent sequences: A126608 A126609 A126610 * A126612 A126613 A126614

nonn

Lekraj Beedassy, Feb 07 2007

approved