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 A256046 #11 Jan 04 2025 07:33:32 %S A256046 1,8,3,52,29,272,901,73124,89893 %N A256046 Main diagonal of A256045: order of all-2s configuration on the n X n sandpile grid graph. %H A256046 Laura Florescu, Daniela Morar, David Perkinson, Nicholas Salter, and Tianyuan Xu, <a href="https://doi.org/10.37236/4472">Sandpiles and Dominos</a>, Electronic Journal of Combinatorics, Volume 22(1), 2015. %Y A256046 Cf. A256043, A256045, A256047. %K A256046 nonn,more %O A256046 2,2 %A A256046 _N. J. A. Sloane_, Mar 15 2015