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 A349101 #17 May 16 2022 17:38:52 %S A349101 8,33,144,626,2808,13422,65488,326183,1650784,8444367,43629968, %T A349101 227105588,1190399144,6274864076 %N A349101 Number of fixed polyarcs with n cells. %Y A349101 Cf. A057787, A353979. %K A349101 nonn,more %O A349101 1,1 %A A349101 _Aaron N. Siegel_, May 14 2022