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 A030330 #6 May 29 2021 19:25:40 %S A030330 1,2,1,2,3,4,3,4,5,4,3,2,3,4,3,4,5,4,5,4,5,6,5,4,3,4,3,4,5,4,5,6,7,8, %T A030330 7,8,9,8,7,8,9,8,7,8,7,6,5,4,5,6,7,6,7,6,5,6,7,6,7,8,9,10,9,8,9,10,9, %U A030330 8,9,10,9,8,7,8,7,8,9,10,11,10,11,12,11,12,13 %N A030330 (# 1's)-(# 0's) in first n terms of A030324. %t A030330 Accumulate[Flatten[IntegerDigits[#,2]&/@Fibonacci[Range[2,20]]]/.(0->-1)] (* _Harvey P. Dale_, May 29 2021 *) %K A030330 nonn %O A030330 1,2 %A A030330 _Clark Kimberling_