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 A358321 #67 Feb 16 2025 08:34:04 %S A358321 11,210,87,228,1155,7854,66612,395646,2193303,8389010,122574155, %T A358321 630341910,6066475415 %N A358321 a(n) is the index of the smallest n-gonal number with exactly n distinct prime factors. %H A358321 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/DistinctPrimeFactors.html">Distinct Prime Factors</a> %H A358321 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/PolygonalNumber.html">Polygonal Number</a> %Y A358321 Cf. A358862, A359014. %K A358321 nonn,more %O A358321 3,1 %A A358321 _Ilya Gutkovskiy_, Dec 12 2022