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 A352349 #6 Feb 16 2025 08:34:03 %S A352349 158,238,492,860,1318,1922,2648,3602,4996,6782,9232,12042,14747 %N A352349 a(n) is the largest number that is not the sum of distinct centered n-gonal numbers. %H A352349 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/CenteredPolygonalNumber.html">Centered Polygonal Number</a> %Y A352349 Cf. A007419, A101321, A352350. %K A352349 nonn,more %O A352349 3,1 %A A352349 _Ilya Gutkovskiy_, Mar 12 2022