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A335281 Perimeters of nonprimitive Heronian triangles whose middle side length is a square. 3
48, 80, 90, 108, 192, 216, 240, 256, 264, 270, 272, 280, 300, 320, 328, 336, 360, 380, 392, 400, 416, 432, 468, 486, 512, 540, 572, 576, 588, 594, 600, 612, 630, 648, 650, 660, 690, 720, 726, 768, 810, 816, 850, 864, 880, 882, 900, 918, 960, 968, 972, 980, 1008, 1024, 1040 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
Eric Weisstein's World of Mathematics, Heronian Triangle
Wikipedia, Integer Triangle
CROSSREFS
Sequence in context: A260370 A260363 A261553 * A335196 A348527 A362969
KEYWORD
nonn
AUTHOR
Wesley Ivan Hurt, May 30 2020
STATUS
approved

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Last modified April 21 06:29 EDT 2024. Contains 371850 sequences. (Running on oeis4.)