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 A053043 #14 Jul 03 2022 06:45:47
%S A053043 3,12,40,210,3773
%N A053043 Number of facets of hypermetric correlation cone.
%C A053043 In Table 1 of Deza & Dutour Sikirić 2018 (also in Table 13.1 on p. 223 of "Generalizations of Finite Metrics and Cuts"), the same initial terms are given for the number of facets of the hypermetric cone HYP_{n-1}, with the next term 298592. However, the hypermetric cone HYP and the hypermetric correlation cone HYCO apparently have different definitions. - _Andrey Zabolotskiy_, Jun 25 2022
%D A053043 M. Deza and V. Grishukhin, Voronoi L-decomposition of PSD_n and the hypermetric correlation cone, pp. 75-79 of Voronoi's Impact on Modern Science, ed. P. Engel and H. Syta, 2 vols, Inst. Math., Nat. Acad. Sci. Ukraine, Kiev 1998.
%D A053043 Elena Deza, Michel Deza and Mathieu Dutour Sikirić, Generalizations of Finite Metrics and Cuts, World Scientific, 2016.
%H A053043 Michel Deza and Mathieu Dutour Sikirić, <a href="https://doi.org/10.1016/j.jsc.2016.01.009">The hypermetric cone and polytope on eight vertices and some generalizations</a>, Journal of Symbolic Computation, 88 (2018), 67-84.
%Y A053043 Cf. A235459.
%K A053043 nonn,nice,more
%O A053043 2,1
%A A053043 _N. J. A. Sloane_, Feb 25 2000