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 A318897 #21 Oct 12 2018 19:52:54 %S A318897 1,8,5433,28925040 %N A318897 Number of tilings of the even-order sphinx with the two dominoes that form the second-order sphinx. %C A318897 There are 46 sphinx dominoes. The order 2 sphinx is composed of two different dominoes. These two dominoes are used to tile the even-order sphinx. %C A318897 The orientation of the order 8 sphinx in the link below is essential for the bit-vector bottom-up search to efficiently find solutions. All order 8 solutions are found in a few minutes. %H A318897 Craig Knecht, <a href="/A318897/a318897_1.png">46 sphinx dominoes.</a> %H A318897 Craig Knecht, <a href="/A318897/a318897.pdf">Sphinx domino introduction.</a> %H A318897 Craig Knecht, <a href="/A318897/a318897.png">Sphinx domino tiling.</a> %H A318897 Craig Knecht, <a href="/A318897/a318897_3.png">T12 missing one of the fundamental two dominoes.</a> %Y A318897 Cf. A279887, A317541. %K A318897 nonn,more %O A318897 1,2 %A A318897 _Craig Knecht_, Sep 05 2018