1,1

Table of n, a(n) for n=1..39.

Ron Knott, Pythagorean Triples and Online Calculators

Eric Weisstein's World of Mathematics, Pythagorean Triple.

Index entries related to Pythagorean Triples.

a(3)=120 because 120 is the smallest possible perimeter for which 3 different Pythgorean triangles exist: 120=20+48+52=24+45+51=30+40+50.

Cf. A099830 first perimeter with exact match of number of Pythagorean triangles, A009096 ordered perimeters of Pythagorean triangles.

Sequence in context: A273691 A094807 A120644 * A099830 A158443 A153792

Adjacent sequences: A099826 A099827 A099828 * A099830 A099831 A099832

nonn

Hugo Pfoertner, Oct 27 2004

More terms from Ray Chandler, Oct 29 2004

approved