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 A330698 #22 Dec 31 2019 13:54:32 %S A330698 10,15,16,18,20,24,26,28,30,32,34,35,36,40,42,44,45,48,50,51,52,54,56, %T A330698 57,58,60,63,64,65,66,68,70,72,74,75,76,77,78,80,81,82,84,85,88,90,91, %U A330698 92,96,98,99,100,102,104,105,106,108,110,111,112,114,116,117,119,120,122,124 %N A330698 Numbers k such that there exists a non-Cayley vertex-transitive graph of order k. %C A330698 Numbers k for which A185959(k) < A006799(k). %C A330698 Numbers k for which A006792(k) <> 0. %C A330698 In the Farrokhi reference, a Cayley number is a number k such that all vertex transitive graphs of order k are Cayley graphs. %H A330698 M. Farrokhi D. G., <a href="/A330698/a330698.txt">List of known non-Cayley numbers less than or equal to 1000000</a> %H A330698 M. Farrokhi D. G., <a href="https://iasbs.ac.ir/~farrokhi/pages/miscellaneous/cayleynumbers.html">Cayley numbers</a> %H A330698 M. Farrokhi D. G., <a href="https://github.com/mohammadfarrokhi/CayleyNumbers">Cayley numbers</a> (GitHub) %Y A330698 Cf. A006792, A006799, A185959, A330697. %K A330698 nonn %O A330698 1,1 %A A330698 _M. Farrokhi D. G._, Dec 26 2019