A334015 Perimeters of integer-sided triangles with at least one prime median.

18, 24, 30, 40, 42, 48, 50, 56, 60, 66, 70, 72, 78, 80, 84, 88, 90, 96, 98, 102, 104, 110, 112, 114, 120, 126, 130, 132, 136, 138, 140, 144, 150, 152, 154, 156, 160, 168, 170, 174, 176, 180, 182, 184, 186, 190, 192, 198, 200, 204, 208, 210, 216, 220, 222, 224, 228

Offset

1,1

Links

Table of n, a(n) for n=1..57.

Eric Weisstein's World of Mathematics, Triangle Median.

Wikipedia, Integer Triangle

Wikipedia, Median (geometry).

Example

18 is in the sequence since the triangle [5,5,8] has medians (3/2)*sqrt(17), (3/2)*sqrt(17) and 3 (prime).

Crossrefs

Cf. A005044, A333869.

Sequence in context: A076771 A179014 A105093 * A162331 A092536 A214620

Adjacent sequences: A334012 A334013 A334014 * A334016 A334017 A334018

Keyword

nonn

Author

Wesley Ivan Hurt, Apr 12 2020

Status

approved