This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A334589 #10 Feb 16 2025 08:34:00 %S A334589 24,32,36,48,54,60,64,72,80,84,88,90,96,100,108,112,120,126,128,132, %T A334589 136,140,144,150,152,156,160,162,168,176,180,192,196,198,200,204,208, %U A334589 210,216,220,224,228,234,240,250,252,256,260,264,270,272,276,280,288,294,300,304,306 %N A334589 Perimeters of nonprimitive Heronian triangles. %H A334589 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/HeronianTriangle.html">Heronian Triangle</a> %H A334589 Wikipedia, <a href="https://en.wikipedia.org/wiki/Heronian_triangle">Heronian triangle</a> %H A334589 Wikipedia, <a href="https://en.wikipedia.org/wiki/Integer_triangle">Integer Triangle</a> %e A334589 a(1) = 24; there is one nonprimitive Heronian triangle with a perimeter of 24, which is [6,8,10]. %e A334589 a(2) = 32; there is one nonprimitive Heronian triangle with a perimeter of 32, which is [10,10,12]. %Y A334589 Cf. A051518, A096468, A334590. %K A334589 nonn %O A334589 1,1 %A A334589 _Wesley Ivan Hurt_, May 06 2020