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 A279908 #12 Aug 21 2021 20:46:38 %S A279908 2,10,79,82,401,577,1129,1297,4759,9871,15409,23593,24859,49281,97753, %T A279908 106537,159199,197137,212137,239119,245023,444089,589822,614849, %U A279908 815413,837929,943951,1025494,1389169,1564999,3145801,3335737,3651919,3747379,4494401 %N A279908 Least positive squarefree integer k such that Q(sqrt(k)) has a class number greater than that of any previous integer. %Y A279908 Records in A081363. %K A279908 nonn %O A279908 1,1 %A A279908 _Robert G. Wilson v_, Apr 11 2017