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 A205848 #8 Mar 30 2012 18:58:12 %S A205848 1,1,4,1,4,6,2,3,1,4,6,7,5,1,4,6,7,10,1,4,6,7,10,12,2,8,3,9,1,4,6,7, %T A205848 10,12,13,5,11,1,4,6,7,10,12,13,16,1,4,6,7,10,12,13,16,18,2,8,14,3,9, %U A205848 15 %N A205848 The least number j such that 4 divides s(k)-s(j), where k(n)=A205847(n) and s(k) denotes the (k+1)-st Fibonacci number. %C A205848 For a guide to related sequences, see A205840. %e A205848 (See the example at A205847.) %t A205848 (See the program at A205847.) %Y A205848 Cf. A204890, A205847, A205850. %K A205848 nonn %O A205848 1,3 %A A205848 _Clark Kimberling_, Feb 02 2012