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 A098854 #12 Mar 04 2020 05:55:02 %S A098854 0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,1,2,6,40,303 %N A098854 Number of triangle-free self-polar configurations of type (n_3). %H A098854 A. Betten, G. Brinkmann and T. Pisanski, <a href="https://doi.org/10.1016/S0166-218X(99)00143-2">Counting symmetric configurations v_3</a>, Discrete Appl. Math., 99 (2000), 331-338. %Y A098854 Cf. A001403, A098702, A023994. %K A098854 nonn,hard,more %O A098854 1,18 %A A098854 _N. J. A. Sloane_, Nov 05 2004