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 A373215 #11 May 28 2024 08:15:41 %S A373215 1,2,1,3,2,4,1,3,5,2,4,1,6,3,5,2,7,4,1,6,3,8,5,2,7,4,1,9,6,3,8,5,2,10, %T A373215 7,4,1,9,6,3,11,8,5,2,10,7,4,1,12,9,6,3,11,8,5,2,13,10,7,4,1,12,9,6,3, %U A373215 14,11,8,5,2,13,10,7,4,15,1,12,9,6,3,14,11,8,5,16,2,13,10,7,4,15,1,12,9,6,17,3,14,11,8,5 %N A373215 Signature sequence of Pi/2. %C A373215 Signature sequence of x = A019669: defined by sorting the values of i+j*x, i,j>=1, and collecting the list of the i in that order. %C A373215 Starts similar to A191475, because Pi/2 = 1.5708... is close to log_2(3) = 1.5849..... %H A373215 <a href="/index/Si#signature_sequences">Index entries for sequences related to signature sequences</a> %Y A373215 Cf. A019669. %K A373215 nonn %O A373215 1,2 %A A373215 _R. J. Mathar_, May 28 2024