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A334584 Perimeters of primitive Heronian triangles whose smallest side length is prime. 2
12, 16, 18, 30, 42, 44, 50, 54, 56, 64, 66, 68, 70, 76, 80, 84, 90, 98, 100, 104, 108, 112, 128, 132, 140, 144, 150, 152, 156, 162, 164, 172, 174, 180, 182, 186, 192, 196, 198, 200, 204, 208, 210, 216, 220, 222, 224, 230, 232, 234, 236, 238, 242, 248, 250, 252, 256, 260 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..58.

Eric Weisstein's World of Mathematics, Heronian Triangle

Wikipedia, Heronian triangle

Wikipedia, Integer Triangle

EXAMPLE

a(1) = 12; there is one primitive Heronian triangle with a perimeter of 12 whose shortest side length is prime, which is [3,4,5].

a(4) = 30; there is one primitive Heronian triangle with a perimeter of 30 whose shortest side length is prime, [5,12,13].

CROSSREFS

Cf. A010051, A096468, A334586, A334587.

Sequence in context: A334983 A334984 A334338 * A054281 A171955 A225071

Adjacent sequences:  A334581 A334582 A334583 * A334585 A334586 A334587

KEYWORD

nonn

AUTHOR

Wesley Ivan Hurt, May 06 2020

STATUS

approved

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Last modified May 24 08:13 EDT 2022. Contains 354024 sequences. (Running on oeis4.)