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 A136004 #19 Jan 05 2025 19:51:38
%S A136004 4,5,6,5,6,7,6,5,6,7,8,7,6,7,6,5,6,7,8,7,8,9,8,7,6,7,8,7,6,7,6,5,6,7,
%T A136004 8,7,8,9,8,7,8,9,10,9,8,9,8,7,6,7,8,7,8,9,8,7,6,7,8,7,6,7,6,5,6,7,8,7,
%U A136004 8,9,8,7,8,9,10,9,8,9,8,7,8,9,10,9,10,11,10,9,8,9,10,9,8,9
%N A136004 a(n) = A005811(n) + 4.
%C A136004 The composer Per Nørgård's name is also written in the OEIS as Per Noergaard.
%H A136004 Vincenzo Librandi, <a href="/A136004/b136004.txt">Table of n, a(n) for n = 0..5000</a>
%H A136004 Jeffrey Shallit, <a href="https://web.archive.org/web/2024*/https://www.fq.math.ca/Papers1/43-3/paper43-3-9.pdf">The mathematics of Per Noergaard's rhythmic infinity system</a>, Fib. Q., 43 (2005), 262-268.
%t A136004 Table[Length@ Split@ IntegerDigits[n, 2] - Boole[n == 0] + 4, {n, 0, 93}] (* _Michael De Vlieger_, Sep 05 2017 *)
%Y A136004 Cf. A005811.
%K A136004 nonn
%O A136004 0,1
%A A136004 _N. J. A. Sloane_, Mar 16 2008