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 A024827 #11 Mar 06 2014 22:31:20 %S A024827 2,5,10,19,33,76,109,148,197,325,406,501,727,865,1015,1373,1576,1801, %T A024827 2313,2602,3250,3611,4001,4852,5325,5820,6913,7501,8789,9478,10207, %U A024827 11775,12616,14416,15377,16385,18514,19653,22051,23329,24643,27437,28900,32001,33621 %N A024827 Least m such that if r and s in {1/1, 1/4, 1/9,..., 1/n^2} satisfy r < s, then r < k/m < s for some integer k. %C A024827 For a guide to related sequences, see A001000. - _Clark Kimberling_, Aug 07 2012 %H A024827 Clark Kimberling, <a href="/A024827/b024827.txt">Table of n, a(n) for n = 2..100</a> %t A024827 leastSeparator[seq_] := Module[{n = 1}, %t A024827 Table[While[Or @@ (Ceiling[n #1[[1]]] < %t A024827 2 + Floor[n #1[[2]]] &) /@ (Sort[#1, Greater] &) /@ %t A024827 Partition[Take[seq, k], 2, 1], n++]; n, {k, 2, Length %t A024827 [seq]}]]; %t A024827 t = Flatten[Table[1/h^2, {h, 1, 60}]] %t A024827 leastSeparator[t] %Y A024827 Cf. A001000. %K A024827 nonn %O A024827 2,1 %A A024827 _Clark Kimberling_