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 A002856 M1864 N0739 #19 Jan 29 2022 01:00:47 %S A002856 1,1,2,8,42,296,2635,25626,268394,2937495,33310550,388431688, %T A002856 4637550072,56493493990,700335433295 %N A002856 Number of polyhedra with n nodes and n faces. %D A002856 N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 (includes this sequence). %D A002856 N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence). %H A002856 P. J. Federico, <a href="http://dx.doi.org/10.1016/S0021-9800(69)80050-5">Enumeration of polyhedra: the number of 9-hedra</a>, J. Combin. Theory, 7 (1969), 155-161. %H A002856 Kyu-Hwan Lee, Se-jin Oh, <a href="http://arxiv.org/abs/1601.06685">Catalan triangle numbers and binomial coefficients</a>, arXiv:1601.06685 [math.CO], 2016. %H A002856 G. P. Michon, <a href="http://www.numericana.com/data/polyhedra.htm">Counting Polyhedra</a> %Y A002856 One of the main diagonals of A212438. %K A002856 nonn,hard,more,nice %O A002856 4,3 %A A002856 _N. J. A. Sloane_ %E A002856 More terms from _Gerard P. Michon_, Mar 29 2002