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 A005280 M3796 #13 Aug 09 2021 08:39:39 %S A005280 1,5,10,16,22,29 %N A005280 Davenport-Schinzel numbers of degree 5 on n symbols. %D A005280 R. K. Guy, Unsolved Problems in Number Theory, E20. %D A005280 D. P. Roselle and R. G. Stanton, Results on Davenport-Schinzel sequences, pp. 249-267 in Proceedings of the Louisiana Conference on Combinatorics, Graph Theory and Computer Science. Vol. 1, edited R. C. Mullin et al., 1970. %D A005280 N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence). %Y A005280 Cf. A002004, A005281, A259874. %K A005280 nonn,more %O A005280 1,2 %A A005280 _N. J. A. Sloane_ %E A005280 Name edited by _Jinyuan Wang_, Aug 09 2021