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 A330565 #10 Aug 09 2022 05:53:32 %S A330565 1,3,4,5,7,8,9,11,12,15 %N A330565 The thirteen entries from A005848 for which the integers of the cyclotomic field form a Euclidean ring with respect to the norm. %H A330565 Hendrik W. Lenstra and A. J. van der Poorten, <a href="https://doi.org/10.1007/BF03024378">Euclidean number fields 1</a>, Math. Intelligencer 2 (1979): pp. 6-15. See Eq. (13). %Y A330565 Cf. A005848. %K A330565 nonn,fini,full %O A330565 1,2 %A A330565 _N. J. A. Sloane_, Jan 05 2020