# Greetings from The On-Line Encyclopedia of Integer Sequences! http://oeis.org/ Search: id:a024839 Showing 1-1 of 1 %I A024839 #12 Jun 27 2022 21:17:58 %S A024839 13,33,61,97,161,221,313,393,513,613,761,881,1057,1249,1405,1625,1861, %T A024839 2049,2313,2593,2813,3121,3445,3697,4049,4417,4801,5101,5513,5941, %U A024839 6385,6729,7201,7689,8193,8581,9113,9661,10225,10657,11249,11857 %N A024839 Least m such that if r and s in {1/4, 1/8, 1/12, ..., 1/4n} satisfy r < s, then r < k/m < (k+1)/m < s for some integer k. %C A024839 For a guide to related sequences, see A001000. - _Clark Kimberling_, Aug 12 2012 %H A024839 Clark Kimberling, Table of n, a(n) for n = 2..100 %t A024839 leastSeparatorS[seq_, s_] := Module[{n = 1}, %t A024839 Table[While[Or @@ (Ceiling[n #1[[1]]] < %t A024839 s + 1 + Floor[n #1[[2]]] &) /@ (Sort[#1, Greater] &) /@ %t A024839 Partition[Take[seq, k], 2, 1], n++]; n, {k, 2, Length[seq]}]]; %t A024839 t = Map[leastSeparatorS[1/(4*Range[50]), #] &, Range[5]]; %t A024839 t[[2]] (* A024839 *) %t A024839 (* _Peter J. C. Moses_, Aug 06 2012 *) %Y A024839 Cf. A001000, A024838. %K A024839 nonn %O A024839 2,1 %A A024839 _Clark Kimberling_ %E A024839 Corrected by _Clark Kimberling_, Aug 12 2012 # Content is available under The OEIS End-User License Agreement: http://oeis.org/LICENSE