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 A345324 #7 Jun 14 2021 10:02:35 %S A345324 1,1,2,3,8,17,55,166,675,2977,15553,90159,586769,4197170,32919812, %T A345324 281235872,2609796620 %N A345324 Number of unlabeled 2-connected simple graphs with girth at least 6. %C A345324 The girth is the length of the shortest cycle, so girth at least 6 means there are no cycles of length 3, 4 or 5. %Y A345324 A345246 for girth at least 4. %Y A345324 A140440 for girth at least 5. %K A345324 nonn,more %O A345324 6,3 %A A345324 _Brendan McKay_, Jun 14 2021