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 A374312 #6 Feb 16 2025 08:34:07 %S A374312 0,1,1,2,3,11,38,250,2171,25518,388854,7283110,171355621,4915591680, %T A374312 174203813967,7526329299531 %N A374312 Number of graphs of order n with exactly one Hamiltonian cycle of girth at least 4. %H A374312 Jan Goedgebeur, Barbara Meersman, and Carol T. Zamfirescu, <a href="https://arxiv.org/abs/1812.05650">Graphs with few Hamiltonian Cycles</a>, arXiv:1812.05650 [math.CO], 2018-2019. See Table 4 at p. 23. %H A374312 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/UniquelyHamiltonianGraph.html">Uniquely Hamiltonian Graph</a>. %Y A374312 Cf. A307956, A374313. %K A374312 nonn,more %O A374312 3,4 %A A374312 _Stefano Spezia_, Jul 04 2024