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 A189034 #4 Mar 30 2012 18:57:23 %S A189034 1,5,7,8,10,11,12,15,16,17,19,23,24,25,27,30,34,36,37,38,40,43,47,48, %T A189034 52,54,55,57,58,59,61,64,68,69,73,75,76,77,81,83,84,86,87,88,91,92,93, %U A189034 95,98,102,103,107,109,110,111,115,117,118,120,121,122,124,128 %N A189034 Positions of 0 in the zero-one sequence s based on the sequence lower Wythoff sequence p: s(p(k))=s(k); s(q(k))=1-s(k); s(1)=0, q=(upper Wythoff sequence). %C A189034 It is conjectured at A095076 that the zero-sequence s is A095076. %t A189034 r=(1+5^(1/2))/2; u[n_] := Floor[n*r]; (*A000201*) %t A189034 a[1] = 0; h = 128; %t A189034 c = (u[#1] &) /@ Range[2h]; %t A189034 d = (Complement[Range[Max[#1]], #1] &)[c]; (*A001950*) %t A189034 Table[a[d[[n]]] = 1 - a[n], {n, 1, h - 1}]; %t A189034 Table[a[c[[n]]] = a[n], {n, 1, h}] (*A095076 conjectured*) %t A189034 Flatten[Position[%, 0]] (*A189034*) %t A189034 Flatten[Position[%%, 1]] (*A189035*) %Y A189034 A095076, A189035. %K A189034 nonn %O A189034 1,2 %A A189034 _Clark Kimberling_, Apr 15 2011