A051518 Perimeters of Heronian triangles.

12, 16, 18, 24, 30, 32, 36, 40, 42, 44, 48, 50, 54, 56, 60, 64, 66, 68, 70, 72, 76, 78, 80, 84, 88, 90, 96, 98, 100, 104, 108, 110, 112, 114, 120, 126, 128, 130, 132, 136, 140, 144, 150, 152, 154, 156, 160, 162, 164, 168, 170, 172, 174, 176, 180, 182, 186, 190, 192, 196, 198, 200, 204

Offset

1,1

Comments

A triangle with integer sides and area is also called a Heronian triangle, and every such triangle can be positioned in the plane so that its three vertices have integer coordinates. - Peter Kagey, Jan 24 2018

Links

Peter Kagey and Giovanni Resta, Table of n, a(n) for n = 1..10000 (first 1000 terms from Peter Kagey)

Eric Weisstein's World of Mathematics, Heronian Triangle

Wikipedia, Heronian triangle

Crossrefs

Cf. A096468, A298079.

Positions of nonzero values in A051516.

Sequence in context: A080258 A054290 A107308 * A043544 A097620 A335222

Adjacent sequences: A051515 A051516 A051517 * A051519 A051520 A051521

Keyword

nonn

Author

David W. Wilson

Extensions

Name changed by Wesley Ivan Hurt, May 16 2020

Status

approved