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 A006627 M0842 #18 Dec 19 2021 00:04:25 %S A006627 1,1,2,3,7,14,54,224,2038,32728 %N A006627 Number of nonisomorphic 2-graphs with n nodes with first and second cohomology invariants both 0. %D A006627 Buekenhout, ed., Handbook of Incidence Geometry, 1995, p. 884. %D A006627 J. J. Seidel and D. E. Taylor, Two-graphs: a second survey, pp. 689-711 of L. Lovasz and V. Sos, eds., Algebraic Methods in Graph Theory (Colloq. Janos Bolyai 25), North-Holland, 1981. %D A006627 N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence). %H A006627 F. C. Bussemaker, R. A. Mathon and J. J. Seidel, <a href="https://link.springer.com/content/pdf/10.1007/BFb0092256.pdf">Tables of two-graphs</a>, T.H.-Report 79-WSK-05, Technological University Eindhoven, Dept. Mathematics, 1979; also pp. 71-112 of "Combinatorics and Graph Theory (Calcutta, 1980)", Lect. Notes Math. 885, 1981. %H A006627 F. C. Bussemaker, R. A. Mathon and J. J. Seidel, <a href="https://www.google.com/books/edition/Combinatorics_and_Graph_Theory/KD17CwAAQBAJ?hl=en&gbpv=1&pg=PA70&printsec=frontcover">Tables of two-graphs</a>, T.H.-Report 79-WSK-05, Technological University Eindhoven, Dept. Mathematics, 1979; also pp. 71-112 of "Combinatorics and Graph Theory (Calcutta, 1980)", Lect. Notes Math. 885, 1981. %Y A006627 Cf. A085617, A002854. %K A006627 nonn,nice %O A006627 1,3 %A A006627 _N. J. A. Sloane_