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 A334675 #6 Feb 16 2025 08:34:00 %S A334675 1,1,1,2,1,2,1,3,1,1,3,5,1,4,2,2,3,1,2,4,1,1,2,4,3,9,1,7,5,3,1,2,2,2, %T A334675 5,11,2,6,3,1,8,10,6,1,9,7,2,1,7,8,5,9,2,4,7,7,15,1,3,15,2,1,1,2,2,7, %U A334675 11,3,3,6,3,16,3,9,13,8,6,5,21,17,6,2,12,9,8,3,6,1,11,1 %N A334675 Number of nonprimitive Heronian triangles with mutually distinct side lengths and perimeter A334674(n). %H A334675 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/HeronianTriangle.html">Heronian Triangle</a> %H A334675 Wikipedia, <a href="https://en.wikipedia.org/wiki/Heronian_triangle">Heronian triangle</a> %H A334675 Wikipedia, <a href="https://en.wikipedia.org/wiki/Integer_triangle">Integer Triangle</a> %e A334675 a(1) = 1; there is one nonprimitive Heronian triangle with perimeter A334674(1) = 24 whose side lengths are mutually distinct, [6,8,10]. %e A334675 a(2) = 1; there is one nonprimitive Heronian triangle with perimeter A334674(2) = 36 whose side lengths are mutually distinct, [9,12,15]. %Y A334675 Cf. A331366, A334665, A334674. %K A334675 nonn %O A334675 1,4 %A A334675 _Wesley Ivan Hurt_, May 07 2020