A081874 Ordered odd short legs of primitive Pythagorean triangles.

3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25, 27, 29, 31, 33, 33, 35, 37, 39, 39, 41, 43, 45, 47, 49, 51, 51, 53, 55, 57, 57, 59, 61, 63, 65, 65, 67, 69, 69, 71, 73, 75, 75, 77, 79, 81, 83, 85, 85, 87, 87, 89, 91, 93, 93, 95, 95, 97, 99, 101, 103, 105, 105, 105, 107, 109, 111

Offset

1,1

Comments

Sequence comprises all odd values greater than 1. In particular, primitive Pythagorean triangles with consecutive longer sides have long and short legs 2n(n+1) {A046092(n)} and 2n+1 {A005408(n)} respectively.

Links

Ray Chandler, Table of n, a(n) for n = 1..10000

Ron Knott, Pythagorean Triples and Online Calculators

Crossrefs

Cf. A020884, A046092, A005408.

Sequence in context: A189397 A172100 A064679 * A165747 A053229 A157142

Adjacent sequences: A081871 A081872 A081873 * A081875 A081876 A081877

Keyword

nonn

Author

Lekraj Beedassy, Apr 23 2003

Extensions

Corrected and extended by Ray Chandler, Oct 29 2003

Status

approved