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 A175562 #25 Oct 04 2017 02:10:49 %S A175562 0,0,0,3,0,0,769230,476190,2941176470588235,18, %T A175562 11235955056179775280898876404494382022471910,4 %N A175562 The periodic part of the decimal expansion of 1/Fibonacci(n) with any initial zeros placed at the end of the cycle. %C A175562 A curiosity: the first six digits (with the first digit zero) of a(11): {0,1,1,2,3,5} are the first six Fibonacci numbers! %C A175562 The next term of this sequence contains 232 digits (decimal form of the periodic part of 1/233 = 0.0042918454935622317596566523605150214...7210300). %H A175562 Vincenzo Librandi, <a href="/A175562/b175562.txt">Table of n, a(n) for n = 1..22</a> %e A175562 1/Fibonacci(7) = 1/13 = 0.0769230769230769230... and digit-cycle is 769230, so a(7)= 769230. %t A175562 fc[n_] := Block[{q}, q = Last[First[RealDigits[1/Fibonacci[n]]]]; If[IntegerQ[q], q = {}]; FromDigits[q]]; Table[fc[n], {n, 40}] (* see the Mathematica program in A036275 *) %Y A175562 Cf. A036275. %K A175562 nonn,base %O A175562 1,4 %A A175562 _Michel Lagneau_, Jul 02 2010 %E A175562 Name and comment corrected by _T. D. Noe_, Jul 06 2010