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 A105709 #5 Feb 16 2025 08:32:57 %S A105709 11,17,16,50,27,36,35,66,47,55,58,59,81,70,78,83,83,95,94,111,102,148, %T A105709 114,140,125,126,138,137,145,150,150,163,161,183,169,205,189,191,192, %U A105709 193,215,204,216,212,223,224,228,243,236,250,258,257,267,260,270,271 %N A105709 Smallest m such that 9 is at the n-th position of the decimal representation of the m-th Fibonacci number. %C A105709 A105719(n) = A000045(a(n)). %H A105709 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/FibonacciNumber.html">Fibonacci Number</a> %e A105709 n=3: a(3)=50, %e A105709 A000045(50)=A105710(3)=12586269025->1258626[9]025; %e A105709 n=4: a(4)=27, A000045(27)=A105710(4)=196418->1[9]6418. %Y A105709 Cf. A105701, A072354, A105702, A105703, A105704, A105705, A105706, A105707, A105708. %K A105709 nonn,base %O A105709 0,1 %A A105709 _Reinhard Zumkeller_, Apr 18 2005