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 A358716 #11 Dec 06 2022 10:00:41 %S A358716 1,2,3,12,50,711,18031,952013,92323440 %N A358716 a(n) is the number of inequivalent ways to cut an equilateral triangle with edges of size n into equilateral triangles with integer sides. %C A358716 Similar to A358715, but now we do not regard dissections which differ by a rotation and/or reflection as distinct. %e A358716 a(3)=3 because of: %e A358716 /\ /\ /\ %e A358716 / \ /\/\ /\/\ %e A358716 / \ / \/\ /\/\/\ %Y A358716 Cf. A224239, A358715. %Y A358716 Cf. A299705. %K A358716 nonn,more %O A358716 1,2 %A A358716 _Craig Knecht_ and _John Mason_, Nov 28 2022