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 A291171 #8 Aug 19 2017 19:16:22 %S A291171 2,4,6,8,10,11,13,15,17,20,22,24,26,28,29,31,33,35 %N A291171 Black numbers on the roulette wheel. %C A291171 The black numbers are identical on single zero (European) and double zero (American) roulette wheels, but their arrangement is different. For order of numbers on wheel see sequences provided in crossrefs. %H A291171 Casinoz.club Online Casino Guide, <a href="https://www.casinoz.club/content/everything-about-roulette-wheel-construction-588.html">Everything about the Roulette Wheel Construction.</a> %Y A291171 Cf. A069892, A069893, A291151, A291152, A291154, A291155, A291156, A291157, A291158, A291159, A291160, A291161, A291162. %K A291171 nonn,fini,full %O A291171 1,1 %A A291171 _Hugo Pfoertner_, Aug 19 2017