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 A085863 #7 Dec 15 2017 17:36:30 %S A085863 0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,1,1,0,0,0,1,0,0,0,0,1,1,0,1,0,1,1,0, %T A085863 0,1,1,0,2,1,0,0,2,1,0,1,1,1,1,1,1,0,3,1,0,1,0,1,3,1,1,1,1,1,1,0,1,1, %U A085863 0,3,4,1,2,2,3,1,1,2,3,0,0,2,2,5,0,4,2,2,1,4,1,1,1,0,2,6,0,2,1,4,2,0,6,1,4 %N A085863 Number of 9's in decimal expansion of Fibonacci(n). %t A085863 DigitCount[#,10,9]&/@Fibonacci[Range[0,110]] (* _Harvey P. Dale_, Jan 10 2017 *) %Y A085863 Cf. 0's A085854, 1's A085855, 2's A085856, 3's A085857, 4's A085858, 5's A085859, 6's A085860, 7's A085861, 8's A085862. %K A085863 base,nonn %O A085863 0,39 %A A085863 _Jason Earls_, Jul 06 2003