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 A359230 #9 Feb 16 2025 08:34:04 %S A359230 1,2,3,4,17,27,76,220,747,2232,5719,18980,159340,437580,1672307, %T A359230 10891075,78604064 %N A359230 a(n) is the index of the smallest square pyramidal number with exactly n distinct prime factors. %H A359230 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/DistinctPrimeFactors.html">Distinct Prime Factors</a> %H A359230 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/SquarePyramidalNumber.html">Square Pyramidal Number</a> %Y A359230 Cf. A000330, A001221, A359193, A359229. %K A359230 nonn,more %O A359230 0,2 %A A359230 _Ilya Gutkovskiy_, Dec 22 2022 %E A359230 a(16) from _Jon E. Schoenfield_, Dec 22 2022