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 A030371 #6 Jan 16 2020 16:40:37
%S A030371 1,1,2,1,2,2,2,2,3,4,5,5,6,5,6,5,5,6,6,5,4,5,6,5,4,4,4,5,5,6,5,4,4,4,
%T A030371 5,5,5,6,7,8,8,8,8,8,9,10,11,11,12,13,14,13,12,13,13,12,12,11,12,12,
%U A030371 11,12,13,14,13,14,15,15,15,14,15,16,16,16,15
%N A030371 a(n)=(# 1's)-(# 0's) in first n terms of A030363.
%t A030371 Accumulate[Flatten[IntegerDigits[Fibonacci[Range[2,30]],3]]/.{0->-1,2->0}] (* _Harvey P. Dale_, Jan 16 2020 *)
%K A030371 nonn
%O A030371 1,3
%A A030371 _Clark Kimberling_