%I A020755
%S A020755 2,5,10,51,246,849,22026,217077,1092755,8870033,221167433,
%T A020755 47255689927,82462576233,1043460553378,79180770078563
%N A020755 Increasing gaps between square-free numbers (upper end).
%e A020755 The first gap in A005117 occurs between 1 and 2 and has length 1. The 
               next largest gap occurs between 3 and 5 and has length 2. The next 
               largest gap is between 7 and 10 and has length 3. Etc. We are only 
               interested in gaps that set new records.
%Y A020755 Cf. A005117, A020754, A020753, A045882, A051681.
%Y A020755 Sequence in context: A082593 A124664 A076776 this_sequence A018503 A018535 
               A140304
%Y A020755 Adjacent sequences: A020752 A020753 A020754 this_sequence A020756 A020757 
               A020758
%K A020755 nonn,hard
%O A020755 1,1
%A A020755 David W. Wilson (davidwwilson(AT)comcast.net)
%E A020755 Thanks to Christian Bower for additional comments.