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 A048982 #12 May 16 2018 10:15:06 %S A048982 0,0,0,1,3,8,15,22,32,50,85,80,98,84,59,37,10,2,0,0,0 %N A048982 Number of numbers which have a "prime-rich" reduced residue system (RRS) and binary order n. %C A048982 It is remarkable that in exponentially increasing ranges these occurrences increase to n=13 and thereafter decline to zero. So A048868 is believed to be finite. %e A048982 In binary order (A029837) zone of 7, i.e., in [65,128], 22 numbers belong to A048868: 66, 68, 70, 72, 74, 76, 78, 80, 84, 88, 90, 96, 98, 100, 102, 104, 108, 110, 112, 114, 120, and 126. The largest term is 90090. The largest 4 are divisible by 2310, the largest 28 by 210, and the largest 103 by 30. %Y A048982 Cf. A048862, A048863, A048864, A048865, A048866, A048867, A048868, A048869. %Y A048982 Cf. A002110, A029837, A048597. %K A048982 nonn,more %O A048982 0,5 %A A048982 _Labos Elemer_