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 A337652 #17 Jul 24 2025 10:51:10
%S A337652 1,6,642,2389248,506289991680
%N A337652 Volume of the positive dual signed Birkhoff polytope C_{+}(n).
%H A337652 Florian Kohl, McCabe Olsen, and Raman Sanyal, <a href="https://arxiv.org/abs/1906.01469">Unconditional reflexive polytopes</a>, arXiv:1906.01469 [math.CO], 2019. Also Discrete and Computational Geom., 64:2 (2020), 427-452.
%Y A337652 Cf. A337650, A337651, A337653.
%K A337652 nonn,more
%O A337652 1,2
%A A337652 _N. J. A. Sloane_, Sep 26 2020