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 A358541 #18 Feb 16 2025 08:34:04
%S A358541 20,325,912,43771,234784,11025,680680,9143308361,2470852896
%N A358541 a(n) is the smallest number with exactly n divisors that are centered n-gonal numbers.
%C A358541 Any subsequent terms are > 10^10. - _Lucas A. Brown_, Dec 24 2022
%H A358541 Lucas A. Brown, <a href="https://github.com/lucasaugustus/oeis/blob/main/figuratedivisors.py">Python program</a>.
%H A358541 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/CenteredPolygonalNumber.html">Centered Polygonal Number</a>
%H A358541 <a href="/index/Di#divisors">Index entries for sequences related to divisors of numbers</a>
%e A358541 a(5) = 912 because 912 has 5 centered pentagonal divisors {1, 6, 16, 76, 456} and this is the smallest such number.
%Y A358541 Cf. A005179, A358539, A358540, A358544, A358545.
%K A358541 nonn,more
%O A358541 3,1
%A A358541 _Ilya Gutkovskiy_, Nov 21 2022
%E A358541 a(10)-a(11) from _Martin Ehrenstein_, Dec 04 2022