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 A222196 #11 Feb 17 2021 11:11:47 %S A222196 1,2,3,7,12,20,51,74,246,303,1320,1514,7936,8363 %N A222196 Order of linear recurrence for number of Hamiltonian cycles in the graph C_n X P_k as a function of k. %H A222196 Artem M. Karavaev, <a href="https://web.archive.org/web/20161024010518/http://flowproblem.ru/cycles/hamilton-cycles">Hamilton Cycles</a> %Y A222196 Cf. A003699, A003731, A180582, A180583, A180584, A180585, A180586, A180587, A180588. %Y A222196 Cf. also A222195. %K A222196 nonn,more %O A222196 3,2 %A A222196 _N. J. A. Sloane_, Feb 14 2013