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 A330874 #97 Feb 16 2025 08:33:59 %S A330874 3,5,5,5,4,19,8,20,11,10,29,28,7,6,36,11,17,37,8,19,15,29,69,47,15, %T A330874 133,64,38,71,25,100,25,25,28,97,39,132,20,46,84,142,19,103,93,67,242, %U A330874 41,40,34,43,29,179,41,76,70,95,267,301,69,192,119,68,178,136,99,61,201,218 %N A330874 Sum of the smallest side lengths of all primitive Heronian triangles with perimeter A096468(n). %H A330874 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/HeronianTriangle.html">Heronian Triangle</a> %H A330874 Wikipedia, <a href="https://en.wikipedia.org/wiki/Heronian_triangle">Heronian triangle</a> %H A330874 Wikipedia, <a href="https://en.wikipedia.org/wiki/Integer_triangle">Integer Triangle</a> %e A330874 a(1) = 3; there is one primitive Heronian triangle with perimeter A096468(1) = 12, [3,4,5] and 3 is the smallest side length. %e A330874 a(6) = 19; there are two primitive Heronian triangles with perimeter A096468(6) = 36, [9,10,17] and [10,13,13]. The sum of the smallest side lengths is then 9 + 10 = 19. %Y A330874 Cf. A096468, A334018, A334120. %K A330874 nonn %O A330874 1,1 %A A330874 _Wesley Ivan Hurt_, May 16 2020