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 A358303 #11 Dec 06 2022 19:33:37 %S A358303 1,13,57,231,532,1497,2935,6031,10273,19680,29441,51261,74473,112721, %T A358303 159299,242763,317155,462930,598755 %N A358303 Number of 4-sided regions in the Farey Diagram Farey(n,n), divided by 8. %C A358303 This is the second column in A358885, divided by 8. %C A358303 It would be nice to have a formula. %Y A358303 The Farey Diagrams Farey(m,n) are studied in A358298-A358307 and A358882-A358885, the Completed Farey Diagrams of order (m,n) in A358886-A358889. %K A358303 nonn,more %O A358303 1,2 %A A358303 _Scott R. Shannon_ and _N. J. A. Sloane_, Dec 06 2022