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 A051518 Perimeters of Heronian triangles. 24
 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 (list; graph; refs; listen; history; text; internal format)
 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

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Last modified September 13 11:52 EDT 2024. Contains 375905 sequences. (Running on oeis4.)