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 A291161 #9 Jun 28 2020 18:51:35 %S A291161 28,26,11,20,17,22,15,24,13,10,29,8,31,6,33,4,35,2,28,26,11,20,17,22, %T A291161 15,24,13,10,29,8,31,6,33,4,35,2 %N A291161 Sequence of black numbers on the double zero (American) roulette wheel read clockwise. %C A291161 The angular spacing on the rotor between the black numbers 13 and 10 is 4*Pi/19 due to the insertion of red 1, double zero and red 27. The spacing of all other black neighbors is 2*Pi/19 due to one inserted red number or the single zero between the black numbers 2 and 28. %H A291161 Roulettephysics.com, <a href="https://www.roulettephysics.com/roulette-wheel-diagram-picture/">Roulette Wheel Diagram Picture.</a> %Y A291161 Cf. A069892, A069893, A291151, A291152, A291154, A291155, A291156, A291157, A291158, A291159, A291160, A291162, A291171. %K A291161 nonn,fini,full %O A291161 1,1 %A A291161 _Hugo Pfoertner_, Aug 19 2017